Sort by
Relevancy

Free Stories

78%
Once wasn't enough!- my 2nd shemale exp
So after my first experience I got really into the porn I bought movies magezines got on websites just couldn't get enough. But watching it wasn't enough I had the real thing once and wanted it again. It had been almost a year now and only one person knew about what I had done that one fat... Read full Story
Duke04 2017-04-01 10,444 anal sex Shemale Fucks Guy ass fucking Shemale on Guy
91%
Aby my trans daughter
I am 50 and great shemale fan. I met Aby through PlanetRomio during covid lockdown. I was alone at home that time and i was searching for some good trans or shemale. So Aby so my profile and sent me message. I immediately replied. we exchanged our contacts and then shifted our chat to Whatsapp. ... Read full Story
Stud4Shemale 2022-01-03 4,321 Crossdresser Cumshot Bareback Shemale Fucks Guy Blowjob Big Cock Asian Guy Fucks Shemale cum in mouth
100%
She Loves Dirty Talk Too
Sexy TS Girl: Hiii! How are you? Thanks for being my new friend. I have so much love forssz you, my friend. Don't hesitate to like and comment one or two photos of me that you like. We can also chat... Love, love, love you, sexy man. HardRock: I really enjoyed looking at your galleries.... Read full Story
Hardrock51Fifty 2024-05-17 3,311 anal Amateur Cumshot Creampie Shemale Fucks Guy Blowjob Big Cock domination Guy Fucks Shemale Ass to Mouth cum in mouth dirty talk
85%
Becoming a Shemale's Bitch
I just got into town and spent the whole day moving in and cleaning my new apartment. I didn't have much furniture but the place needed a lot of cleaning. I saw their was a bar a few blocks away from my apartment and decided to go out for something to eat. It was around five o'clock when I walk... Read full Story
metamafia 2012-12-21 118,796 hardcore Cumshot sucking bdsm domination
100%
I Give Up
The following story is the first of four parts of a tale that explores the theme of transformation. It is thematically similar others that I have submitted but has a larger narrative arc. I hope you enjoy reading the first portion, Act One & Two. I continue to work on better editing and someone h... Read full Story
ASSEaster5678 2018-09-14 9,111 Cumshot Bareback Shemale Fucks Guy Big Cock Ladyboy
50%
The first requirement of a deal with Dominatrix Persephone.e
There was a number of requirements before I even consider'd fucking that sissy ass, firstly, I expected dedication to be shown and to prove that the sissy could obey my orders, after a trial period, then I consider to force my big dick down the throat of the that sissy, and then fuck brutally and ex... Read full Story
Dominatrix Persephone 2024-06-21 1,422 anal solo Cumshot Masturbation Shemale Fucks Guy Big Cock Shemale and Girl domination Mature sissy shemale fucks shemale teen (18+)
81%
Ladyboy Switch Story
I am messed up with how I feel about this. I still love looking at women. I love tits and arse. I like the soft feel of women – kissing them and feeling their bodies. I don’t look at men in public and get turned on – men with clothes on do nothing for me. Put me somewhere that I can see those same m... Read full Story
shemale lover 2015-02-27 7,047 Cumshot suck Shemale Fucks Guy Ladyboy ass fucking swallowing
100%
The Game 2
That next morning again Ada and I went down for breakfast and the table was smaller, It wasn't as grand as it had once been and to every guy at the table was now at least two girls. We had our normal breakfast and for once there seemed to be a little more chat between everyone, I think after bei... Read full Story
chris1989r 2022-01-24 4,452 Amateur Cumshot Bareback Shemale Fucks Guy Blowjob blonde Big Cock Asian domination Guy Fucks Shemale Ass to Mouth cum in mouth shemale + shemale
94%
My first Shemale
“Curious? Bi?” Well, yes, but only with a shemale. Beyond that I’m a firmly planted heterosexual. For many years I longed to have sex with a shemale but never did anything about it. (I’m not much of an initiator). The community I live in has lots of shemale beauts; maybe that started my intere... Read full Story
SachinJoy 2018-10-04 32,630 Cumshot Shemale Fucks Guy Blowjob Big Cock Ladyboy cum in mouth
94%
Crossing lines
It had always been a fantasy of mine. I have very feminine features and long natural straight brown hair. Which recently I had shortened to chin length. I have been dressing in womens clothing now for many months and had decided that this was the night in which I get made up totally and head ou... Read full Story
Zöe from Kingston 2019-02-04 11,106 Stockings Crossdresser Cumshot Outdoor Bareback Shemale Fucks Guy Blowjob Big Cock Ebony Guy Fucks Shemale Interracial
100%
1st time with Thai shemale
So after months of crosssdressing , camming and phone sex i finally decided to have a meet. I found a lovely Thai shemale on birchplace and went to see her in London. She was gorgeous and put me at ease straight away. After a few minutes of massage she started licking and sucking my nipples, then as... Read full Story
Nutcracker29 2013-04-09 9,265 first time suck Shemale Fucks Guy Asian big boobs
100%
A Shemale Vacation Part 2
We sat there staring despondently at the ground. We had searched through all our bags and pockets and had nothing like the money we needed to pay for the hot sex sessions we had each enjoyed with the hot, hung Dutch whore. The guy, the pimp, who had previously been all smiles and friendly encouragem... Read full Story
shemale lover 2011-09-05 7,123 anal cumming cum swallowing
95%
Mai
When I was twelve I met a new classmate named Dave, he and I became great friends hanging out, joining clubs and what ever else high school kids do. His family was from the Phillipines and he and his sister were the first generation born in this country. His sister Mai is the focus of this story. ... Read full Story
Zöe from Kingston 2018-08-09 11,346 Cumshot Bareback Shemale Fucks Guy Blowjob Asian Guy Fucks Shemale Interracial cum in mouth
100%
New Orleans TS dream come true..
In was on New Orleans running water for the victims of Katrina in 2005. I went down to Bourbon St several times an one night I walked into adult fetish store and as I was looking around there was what appeared to be a very beautiful black woman bending over with a very short skirt on. I was admirin... Read full Story
jim3801 2018-09-11 10,647 Group Sex Bareback Shemale Fucks Guy threesome Big Cock Ebony Guy Fucks Shemale Interracial Ass to Mouth cum in mouth
33%
My new Experience with Amy Cute Shemale in Pune
Hi friends i am back with new story. I am mad shemale lover. and keep on finding new shemales for me. This time i got new website to search for shemale www.massagerepublic.com I saw an advertisement of Amy and i liked her. called her and fixed appointment. went to her hotel, which was ok ok ... Read full Story
Stud4Shemale 2021-02-20 6,148 Cumshot Bareback Creampie Shemale Fucks Guy Blowjob Asian Guy Fucks Shemale shemale fucks man man-fucking-shemale Indian Shemale Pune
94%
My Shemale Fantasy
Allow me to introduce myself, i’m a young European man, in my early twenties, writing my first erotic story. This has been a fantasy all my life, it probably will remain a fantasy, but that doesnt mean i cant write about it. Ever since i was old enough to realize my raising sexual interest and... Read full Story
Jakester 2013-04-10 31,714 first time Creampie Shemale Fucks Guy ass licking virgin
87%
First Time - Surprise Shemale
I'm an eternal masturbator. I've always like wanking and playing with myself. At a young age I worked out that I likes playing with my ass hole, sticking things in it, walking round all day with something in it. With the advent of the internet I was like a pig in shit. So much porn to be had and so ... Read full Story
shemale lover 2014-09-19 19,448 first time tranny Shemale Fucks Guy jerking wanking 69
89%
My first shemale experience
So before I was even into the porn I had my first experience. I was 25 years old and never thought about anything like this till it happened. I was out with my friends one night hitting the usual bars on the weekend when this hot young woman caught my eye. I was feeling pretty brave due to my "... Read full Story
Duke04 2017-03-28 53,205 first time Amateur Cumshot Shemale Fucks Guy hot shemale
91%
The New Housemate's Secret
https://chyoa.com/chapter/Introduction.150836 The New Housemate's Secret How will you discover the hot new tenant's secret? Chapter 1 by Bauer1 The doorbell rings, a soft knocking accompanies the bell to break the silence of the house. You look up from your laptop nestled snuggly in your la... Read full Story
Acche 2019-04-04 21,997 Big Tits Cumshot Creampie Shemale Fucks Guy Blowjob Big Cock Guy Fucks Shemale handjob titfuck titjob cum in mouth
91%
MY FIRST TIME WITH A SHEMALE
I`ve always had this fantasy about being with a shemale,i guess something about a chick wit a dick and tits always turned me on,i`ve always been curious about wat it`s like to be fucked by one.Well last weekend was a weekend i`m gonna remember for the rest of my life bc that was the weekend i decide... Read full Story
shemale lover 2013-06-21 15,042 tranny Cumshot Shemale Fucks Guy Big Cock fingering swallowing
87%
Encounter with a dominant shemale
One night I was feeling really horny. I just came back from the gym and I wanted to release and relax. I then began my search for some fun on the personal ads section. I have always been into shemales especially verse aggressive ones. I found this one particular post about Asian bottoms. I was c... Read full Story
SecretAznMan 2013-06-28 47,990 Cumshot Shemale Fucks Guy Big Cock Lingerie ass fucking ass licking big boobs
80%
Perfect First Date
i would make dinner for us at my house and we would relax get to know each other better and wed eventually end up sucking each other till ever ounce of fluid in ur bodies was drained, intertwined your cock deep in my throut,as i slowly work my tongue around your cock, you begin to breath harder and ... Read full Story
Tsunami777 2013-04-09 3,935 anal sex Cumshot Creampie Shemale Fucks Guy facial
100%
Fooled Into Love by a Beautiful Transexual
A fictional, steamy love story about a Man’s first experience with a Shemale... a real take charge kinda girl! Maria Lopez was an absolutely stunning 23 yr old Puerto Rican Goddess. I remember the first time I laid eyes on her, bent over inside her hatchback Toyota, pulling out a hanging fern pla... Read full Story
Oobatz 2018-07-24 12,650 Small Tits Amateur Cumshot Bareback Shemale Fucks Guy Big Cock domination cum in mouth
100%
Bareback fuck by Lysa Shemale
Well I am devoted shemale lover and have met many shemales in my life. This incident is of probably December. I called my shemale escort Amy to meet and some how she was not picking call. Then around 4.30 pm she picked n told me that she is having hangover due to party so was sleeping, so I sh... Read full Story
Stud4Shemale 2021-02-20 7,234 Cumshot Bareback Creampie Shemale Fucks Guy Blowjob cum in mouth barebackedshemales shemale fucks male cum in ass Indian Shemale Pune
100%
Becoming A She-Males Bitch Part 2
After last nights ordeal I was given something to drink and taken to a bedroom upstairs. What I drank must have had some kind of drug in it because I was knocked out. I bet I was asleep in just a couple of minutes. I barely even remember lying down. When I woke up I was naked, sore as hell and fe... Read full Story
shemale lover 2012-01-04 8,845 cum oral domination
100%
A Close Encounter of the...
Another great tape and another great yank of the crank. Yea, she-males were pretty hot, Tom thought as he hit the eject bottom on the tape deck, but where on earth would he really find one? He had little doubt that if he did find a place where they hung out that there would be more than a few with a... Read full Story
shemale lover 2011-11-13 5,012 Cumshot Blowjob massage
100%
Transsexual Sisters Chapter 6
Part 6: A Party to Remember MICHELLE AND NICOLE MAKE A CAREER CHOICE After their tormentors were jailed, Michelle and Nicole felt relieved and happy for the first time in weeks. Whether from curiosity, respect or sympathy for their ordeal they became very popular around the USC campus. They we... Read full Story
shemale lover 2012-09-08 4,152 Cumshot sucking threesome Shemale and Girl deep throat
91%
HOW MY AUNT AND SISSY NEPHEW CHANGED MY LIFE FOREVER! (fictional
It was the very first night of my month long North Carolina July summer vacation stay when my Aunt Meg suddenly entered the bedroom that I was temporarily sharing with my younger cousin Rudy. Being so openly effeminine in his body language,voice and looks, I had already planted such dirty thoughts ... Read full Story
CDDIXIE4U 2019-01-08 33,828 Teen (18+) Crossdresser Cumshot Masturbation Bareback Shemale Fucks Guy Fetish Blowjob Big Cock Ladyboy Lingerie domination Homemade Compilation cum in mouth shemale + shemale
100%
First Encounter (Mexican Travesti)
I grew up near the U.S.-Mexico border and am ½ Mexican Hispanic and ½ Anglo (white). I visited Nogales Senora on the Mexican side on and off during my teen years. As a young adult, I was fearless and sometimes went across alone to visit the strip clubs, get a cheap lunch, or look for Mexican sweetie... Read full Story
AllenB 2022-09-07 6,857 anal sex Shemale Fucks Guy Blowjob mexicana cum in ass first time with a tranny
100%
Intense
Holding to my word, I didn't let the incident with Billy and his friends scare me away from Bailey; I kept seeing her, even after the beating I took. To be honest, I'm not sure if he was trying to lay low or what, but Billy seemed to keep his distance from me for a while...thankfully. Bailey and ... Read full Story
Verpa 2019-10-21 10,778 Big Tits Cumshot Bareback Creampie Shemale Fucks Guy Blowjob Big Cock cum in mouth
100%
Amanda and Me Chapter 2
I rolled over after reading Amanda's note with a big smile on my face. I couldn't believe that after all the time I had spent masterbating to shemales and fantasizing about meeting one it had actually happened. Not only had it happened but it had been the most amazing sexual experience of my life. ... Read full Story
shemale lover 2012-10-21 8,678 anal Cumshot shemale oral
100%
Regina’s Double threat.
Hello guys, I recently ran into a former hater who was no longer the hater I had met years earlier. In fact, he had only treated me so horribly because of his own inner dark desires. When we met a few years ago at one of the clubs, he had been very abusive to me. He went out of his way to say hurtfu... Read full Story
Regina10 2022-02-08 3,071 Big Tits Cumshot Bareback Creampie Fetish Blowjob blonde Big Cock redhead Guy Fucks Shemale Ass to Mouth double anal
100%
Becoming a Chrissy - Chapter 2
I had always felt like I had a hot body for a girl. I was naturally blonde and smooth; I guess I had been blessed by my parents’ Scandinavian genetics. My pubes were always just a small fuzz—easy to shave and keep a clean bikini line. Same thing with my armpit hair. And my ass? Completely smooth and... Read full Story
mindlessrobot45 2024-05-13 3,251 Crossdresser gangbang Shemale and Girl cum in mouth shemale fucks female teen (18+)
78%
What Lies Beneath (Part 2)
A RENDEZVOUS WITH SUZY – What Lies Beneath (Part 2) We woke in the morning, showered and dressed before going down to make breakfast. Mia must have planned this all with the girls in advance because she had packed a small suitcase with some day clothes for us both. The sun was streaming throu... Read full Story
The Adventures of Mia & Seth 2020-08-18 7,762 Group Sex Shemale Fucks Guy Shemale and Girl Interracial Latex toys
50%
A Revenge Fuck
It had been a long day. I had fought the traffic after a miserable week to get home early and surprise my wife for what was to be a romantic weekend. But as I pulled up to the house my heart sank. I saw a bright red motorcycle in the drive way and something inside told me, "This isn't right!&qu... Read full Story
shemale lover 2012-06-03 11,169 shemale oral sex Interracial
100%
Big Dick Alessia Visits Dallas
Alessia Hung Mature MILF travels to visit a Big Dicked Man and his Sexy Household If you like Transexuals, big cocks, bondage, BBWs, big clits, deep throat, fisting, 69, ass fucking, sounding, piercing, cum swallowing and big loads this story is for you. If not don't bother reading. If you fav... Read full Story
darrell 2022-04-20 4,352 Group Sex Cumshot Shemale Fucks Guy Blowjob blonde Big Cock Asian Shemale and Girl Sex Toys Mature Ass to Mouth shemale + shemale
91%
Southern Hospitality Ch. 02
XtinaSmith2017 Laura felt herself lifted lazily from the arms of sleep, her body relaxed and floating on a small cloud of pleasure, her mind filled with images, sensations, not pulled from whatever dream she had just been having but instead, memories, memories from the night before. Memories of... Read full Story
Gwapo67 2022-05-16 4,643 Bareback Creampie Shemale Fucks Guy Big Cock Mature
75%
Aunt trip
In 2013, after almost three years of service in Afghanistan, George Madsen, a gay Royal Navy communications petty officer, retired. His experience in the distant deserts had left an indelible mark, the memories of friends lost and challenges faced still burned vividly in his mind. Coming home was n... Read full Story
Rebba 2024-04-25 3,247 Shemale Fucks Guy Blowjob Big Cock Ladyboy Guy Fucks Shemale shemale fucks shemale Fantasy Tale
45%
Shemale Prostate Orgasmic Bliss!!!!
if she wanted breasts." "Oh no. That's the amazing part. The more I dressed him the more feminine he became. By now I'd moved him her and her clothes into the other bedroom. She wasn't happy with that but we came to an agreement; I'd milk her once a week and she... Read full Story
ProstateMilker 2015-05-01 13,819 Masturbation cum orgasm cumshots prostate
100%
Threesome goes clubbing
Ft. Lauderdale is probably the most LGBT friendly city on the east coast. So many nice restaurants and clubs that welcome all and have many LGBT employees as well. Lydia and I have been married several months, we had met Joanne an absolute amazing transgender girl during a weekend trip to the Baha... Read full Story
Jon Paul 2021-07-08 5,268 Big Tits Cumshot Bareback Creampie threesome Guy Fucks Shemale cum in mouth
94%
Southern Hospitality Ch. 01
XtinaSmith2017 Ash gawped at his mother, incredulous as to what she had just said. He understood the basic premise of what had happened, but the reasoning she must have had absolutely baffled him. "Why?! Why would you do that?!" He pleaded, voice light and desperate. She shrugged, looking acr... Read full Story
Gwapo67 2022-05-16 7,106 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Mature
90%
Saving My Marriage
I love to write Erotica. For story requests please send me a private message or email noirenoire10@gmail.com It was our anniversary. Today made five years that my wife and I have been married and we were taking a road trip to celebrate. I chose our destination but I let her choose all of our a... Read full Story
therefill05 2021-02-16 6,122 Cumshot Bareback Creampie Shemale Fucks Guy threesome Blowjob Big Cock Ebony domination Sex Toys cum in mouth
100%
Bimbo Bombshell - Chapters 1-2-3
Bimbo Bombshell - Chapter One: Singled Out! Even though it was Friday, the bar wasn't particularly crowded that night. I never knew what hit me. This Gorgeous Blonde bombshell, starts flirting with me right a my table. I found myself wondering why this glamorous beauty, had chosen me. I was... Read full Story
Hardrock51Fifty 2024-06-23 4,886 Stockings Big Tits Shemale Fucks Guy Fetish Blowjob blonde domination Guy Fucks Shemale blonde shemale PDA Public Displays of Affection
100%
HOW ONE PEEPING TOM MORNING TURNED ME INTO A SHEMALE SISSY BITCH
It was while cutting across his back trailer park lawn around 7pm on misty July Saturday evening, when I first discovered that Mr. Parker was really a fag. How else could you describe a man wearing a long blonde wig on his head while below he wore only a large somehow stuffed pink lacey woman's bra ... Read full Story
CDDIXIE4U 2019-01-08 13,897 Teen (18+) Crossdresser Amateur Cumshot Masturbation Blowjob Big Cock Ladyboy Lingerie domination Guy Fucks Shemale Homemade Compilation Vintage cum in mouth
50%
LE PATRON DE MA MÈRE
Comme tous les seniors de 18 ans, je vivais vite et chassais le cul. Ma vie avait été une ligne forte entre ce que mon esprit pensait que je devais faire et ce que ma bite voulait que je fasse. C'est pourquoi je suis chez la fille la plus salope de l'école. Elle suce ma bite comme si c'était un Toot... Read full Story
Femboy 2021 2023-02-17 940 Teen (18+) Crossdresser Shemale Fucks Guy Fetish Blowjob Big Cock Shemale and Girl domination cum in mouth
92%
A very special lady
I knocked at the door, unsure of what to expect. Living in a big city for the last year, where I didn't really know anybody, had certainly put a crimp in my sex life. Where I used to live, in a much smaller town, during my high school years, I'd been able to get my dick into many tight, warm and wil... Read full Story
shemale lover 2013-07-18 6,053 Stockings anal sex Shemale Fucks Guy ass licking ass fingering
100%
The Three of Us
Imagine you are a lonely person on the inside, and just wanting all your life to be loved for who you are. Holli Artigas, was just that person. Wondering whether her obsession with Jon Silva, a football star, was from a casual encounter, or was she truly fond of him? Growing up in the Sao Paulo, ... Read full Story
Jon Paul 2024-04-28 3,219 anal Creampie Shemale Fucks Guy threesome Shemale and Girl cum in mouth double anal shemale fucks female
0%
Mike and Chris Together
Mike's sex life had taken a definite series of turns for the worse. When he called one of his favorite partners, Stella, she apologized for not returning his earlier calls, and told him she had been very busy lately. "I'm really sorry, Mike. I've had some great times with you, and I will alw... Read full Story
shemale lover 2012-02-07 5,189 anal sex Creampie Shemale Fucks Guy Guy Fucks Shemale
100%
The Girl Next Door Ch. 03 by derezzed ©
Chapter 3 – The Night Out Michael woke up on Monday morning feeling quite relaxed. The sun filtered in through the blinds towards him. He felt warm from the gentle rays. As Michael became more alert, he examined his surroundings. The feeling of silk sheets wrapped around him and Alexis's arm casu... Read full Story
StevelovesTgirls 2019-06-11 18,614 Amateur Shemale Fucks Guy Fetish threesome Blowjob domination Guy Fucks Shemale Ass to Mouth shemale + shemale
100%
Shawshan part2
The summer weather has finally let up and cool evenings where you need a sweater are among my favorite times of the year. Charlene left now from prison and served her time for drug possession. We had become close friends as well as cellmates over the last few months. She no longer cuts her hair as ... Read full Story
Jon Paul 2021-05-20 3,278 Latina Masturbation Bareback Shemale Fucks Guy threesome Guy Fucks Shemale shemale + shemale
100%
Meeting Amanda
I’m a happily married man. My wife Tess and I have been together since we were teenagers. We were each other’s first real lovers and being in our mid-thirties by now, we still madly in love with each other. Tess and I always are very honest and open to each other. Both in normal life and sexual... Read full Story
rforasht 2022-07-20 7,441 Big Tits Cumshot Shemale Fucks Guy threesome blonde Big Cock Lingerie Shemale and Girl redhead Homemade Shemale fucks couple
100%
Tasting the good FLESH
I am no longer Virgin, en bon et du forme Thing never dared since I taste the enjoyment by all the senses and in all its senses... I discovered her when she smiled at me as a thank-you for giving her the way to the small-town supermarket where I was on business. Sandals at her feet of Cinderell... Read full Story
hippocampus_171 2022-11-10 4,833 Amateur Creampie Shemale Fucks Guy Guy Fucks Shemale Mature Ass to Mouth cum in mouth
100%
About Jack and Diane
Thanksgiving was over the college kids are returning to school and Las Vegas has slowed down from the busy restaurants and overcrowded casinos. It’s the best time of year to see a nice show for less. Jack’s friends had all taken off with families and he had time to think about how lonely he really w... Read full Story
Jon Paul 2023-12-20 6,820 anal Cumshot Bareback Fetish threesome Lingerie Guy Fucks Shemale small cock shemale fucks shemale cum in mouth shemale + shemale
50%
Liberty meeting, chapter1
On a beautiful summer day, my phone rings. It's Steve, the boss of a transvestite company who calls me. - Hello Sandra, I have four new friends waiting for you at the club. - Thanks for thinking of me, I'll be right there, I said, hanging up. I am happy with his call because I always meet ... Read full Story
sandratvtg 2024-06-20 1,376 Stockings Shemale Fucks Guy Fetish Lingerie shemale + shemale
90%
Thai Ladyboy
One year ago, when I was 19 I went back to Thailand. The year before was to see the sights and explore the country, the second was more exploring and more fun, the third and final time was to get with as many ladyboys as possible. I had always been curious about trans women. Im not attracted to ... Read full Story
BEN437 2018-11-19 13,356 Teen (18+) Amateur Cumshot Bareback Creampie Blowjob Big Cock Asian Ladyboy domination Guy Fucks Shemale cum in mouth
100%
Thai Ladyboy
One year ago, when I was 19 I went back to Thailand. The year before was to see the sights and explore the country, the second was more exploring and more fun, the third and final time was to get with as many ladyboys as possible. I had always been curious about trans women. Im not attracted to ... Read full Story
BEN437 2018-11-19 5,083 Teen (18+) Amateur Cumshot Bareback Creampie Blowjob Big Cock Asian Ladyboy domination Guy Fucks Shemale cum in mouth