Sort by
Relevancy

Free Stories

80%
First time shemale encounter
Lets start off by saying this a very true story, one that i love to re-live over and over. lets begin I was in el paso, texas..my girlfriend at the hotel. Something in me decided to go to the strip club. So i did. After a few dances, i decided to leave. I had always heard in mexico it was very ea... Read full Story
iloveshemales112 2011-12-17 9,432 Latina Bareback Shemale Fucks Guy Big Cock
100%
Cat hat einen riesen shemale Schwanz
In meinem zweiten Studienjahr fing ich an, mich mit einem der heißesten Mädchen auf dem Campus zu verabreden. Wir hatten uns in meinem Kurs Geschichte des Römischen Reiches kennengelernt und verstanden uns von Anfang an Ich brauchte fast ein ganzes Semester, bis ich den Mut aufbrachte, sie um ein Da... Read full Story
jimyblue 2021-11-22 3,420 Bareback Shemale Fucks Guy Big Cock cum in mouth
78%
A Little Girl Forever
Since I was a little girl I dressed in my sister's clothes, she knew it and she kept clothes for me and sometimes she bought clothes thinking about me. She was my accomplice and still is. When I was alone I dressed totally as a woman and I felt totally satisfied and realized as such, this included m... Read full Story
Mabel Cecilia 2019-05-06 8,021 Small Tits Crossdresser Amateur Cumshot Latina Masturbation Creampie Blowjob blonde Lingerie Shemale and Girl Guy Fucks Shemale Sex Toys Mature self sucking Solo Shemale cum in mouth double anal shemale + shemale
50%
Pa-mie sex-agénaire
Luxure frénétique d’une pa-mie sex-agénaire; entre rêve et réalité Je n’avais jamais fantasmé de mec viril, même après avoir offert ma virginité; mais à une fabuleuse sissy. Avant mon Ѐre, mes préférences de fantasmes étaient toujours avec des lui-femme glabres, idem concernant mes relations d’aprè... Read full Story
hippocampus_171 2023-07-09 836 anal Amateur Group Sex Guy Fucks Shemale Sex Toys Mature small cock big ass sissy femboy Ass to Mouth
50%
lust of a sex-agenarian nana-pops
Frenzied lust of a sex-agenarian nana-pops; between dream and reality I had never fantasized of a manly man, even after offering my virginity; to a fabulous sissy. Before my new Era, my fantasy preferences were always with glabrous he-she’s, same about my relationships after… BUT BUT BUT… My last t... Read full Story
hippocampus_171 2023-07-09 4,693 anal Small Tits Amateur Group Sex Masturbation Guy Fucks Shemale Sex Toys Mature small cock big ass sissy femboy
100%
sex-agenarian's onanic lust
An onanic lust of a sex-agenarian that I am; I'M IN BIG HEAT; it's the season of bodily reunions in nature... I'm like an elephant(e) waiting to be satisfied. My cloaca is starting to titillate at the mere sight (look hah!) of a guy's swollen crotch on the street... I activated all my sensors to sa... Read full Story
hippocampus_171 2024-03-09 4,164 anal solo Amateur Masturbation Creampie Sex Toys Mature small cock
100%
Alessia Travestita Hung Mature Blonde British Porn Star
Alessia Travestita Hung Mature Blonde British Porn Star If you like Transexuals, big cocks, bondage, domination, deep throat, fisting, spit roast, 69, ass fucking, cum swallowing and big loads this story is for you. If not don’t bother reading. If you like my story please leave comments and ... Read full Story
darrell 2022-01-03 4,628 Group Sex Cumshot Bareback Shemale Fucks Guy Blowjob Big Cock gangbang domination Sex Toys Mature cum in mouth shemale + shemale
50%
HOSPITALITÉ DU SUD
Ash regarda sa mère, incrédule quant à ce qu'elle venait de dire. Il comprenait la prémisse de base de ce qui s'était passé, mais le raisonnement qu'elle avait dû le déconcerter. "Pourquoi ?! Pourquoi ferais-tu ça ?!" Il a plaidé, la voix légère et désespérée. Elle haussa l... Read full Story
Femboy 2021 2023-02-05 1,132 Stockings Crossdresser Shemale Fucks Guy Big Cock Lingerie Guy Fucks Shemale
93%
Homework
Daniel was a 15 year old teenager, like any boy his age, he was full of hormones and sexual fantasies for every pretty girl that passed in front of him. In the last weeks of the school year, the history teacher had a child and was absent from school, being replaced by teacher Marlene, a trans woman.... Read full Story
haroldãosanguebom 2024-01-09 7,067 Shemale Fucks Guy Big Cock Mature
100%
Fuck Friends Forever
"Flip over..." Those two words come as a surprise, filling my mind with expectations. I find it interesting that Brian wants to switch from doggie style to a more traditional sex position, a romantic one at that. Hopefully, he won't be turned off if he sees my cock while we're having sex. I hope... Read full Story
ASSEaster5678 2019-01-09 8,795 Bareback Shemale Fucks Guy Big Cock Guy Fucks 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 4,620 Bareback Creampie Shemale Fucks Guy Big Cock Mature
81%
My wonderful life with Patl : The dinner
Hello All, Since Pat told me to serve her fully naked i was/i am really keen to back home and to make her happy. One day she told me, I hate to see you so hairy, I would like you will be fully shaved. I will be very happy to have your cock, balls and ass smooth as a baby skin. I will shav... Read full Story
jperrot 2020-07-21 3,949 Amateur Shemale Fucks Guy Big Cock domination slave guy
100%
Oneness with the bodies
many years went into just fantasizing being with shemales. I was getting hornier day by day to try it out. But being in a relationship there was hardly any room or time for it. I once experienced it in bangkok and confirmed that I really can do it and actually love it. One day suddenly it was br... Read full Story
zyankhaan786 2023-05-30 6,435 Group Sex Bareback Shemale Fucks Guy Big Cock domination big ass cum in mouth double anal
100%
Surprise Ending (The End)
Karla struggled a bit to get the huge, bulbous head of her cock inside of me. It was like my ass had licked a battery. A charge went through my body that while painful, was exhilarating and exciting. "Ahhh," from my lips was all the encouragement I could offer and Karla took it. She steadily push... Read full Story
Chantel13 2022-08-23 5,516 Amateur Outdoor Shemale Fucks Guy Big Cock Shemale and Girl Guy Fucks Shemale Ass to Mouth cum in mouth
98%
Fantasy cums true
I was on a business trip staying in a nice Hotel. After a business meeting in my room I called down for room service. The maid came up a few minutes later and I let her in. She was stunning, 5' tall with black hair and the bluest eyes I have ever seen. Under her uniform you could tell she was very w... Read full Story
shemale lover 2013-07-11 8,501 anal sex Cumshot suck Creampie Shemale Fucks Guy fingering
100%
Incubator
For lack of a better term, I will call him my Lover. I call him Grae, which sounds like "gray" if you are doing a rather poor impersonation of a Scotsman. Not that I have anything against the Scots; that's just as close as I have been able to come to pronouncing his real name. You would think that s... Read full Story
ASSEaster5678 2019-04-23 4,561 Big Tits Bareback Shemale Fucks Guy Big Cock Guy Fucks Shemale monster
100%
TG girlfriend is my new neighbor
With Christmas and New Year’s over, the weather here in Florida has become cooler, 45 degrees last night and it will be in the mid-sixties for the rest of the week. We live in a sub-division right off the waterway, very private. My neighbor usually comes down around Christmas and stays until tax ti... Read full Story
Jon Paul 2022-01-17 4,124 Big Tits Bareback Creampie Shemale Fucks Guy Big Cock Asian Guy Fucks Shemale
96%
Ladyboy surprise in Bankgkok
A few years ago I went to Thailand for the first time, my first stop was the bustling city of Bangkok. I had heard stories about the nightlife, the girls and the tourists. The country had never appealed to me that much but through a twist of fate I ended up visiting the city of sin for a couple of d... Read full Story
Gracemel121 2021-03-25 11,847 Amateur Shemale Fucks Guy Big Cock Asian Ladyboy cum in mouth
50%
Luxure onanique
Luxure onanique du sex-agénaire que je suis... JE SUIS EN GRANDES CHALEURS; c'est la saison des retrouvailles corporelles dans la nature... je suis comme une éléphante qui attend d'être satisfaite. Mon cloaque commence à titiller rien qu'à voir (regarder hah!) l'entrejambe gonflé d'un mec dans l... Read full Story
hippocampus_171 2024-03-09 381 anal solo Amateur Masturbation Creampie Sex Toys Mature small cock
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 4,334 Group Sex Cumshot Shemale Fucks Guy Blowjob blonde Big Cock Asian Shemale and Girl Sex Toys Mature Ass to Mouth shemale + shemale
100%
How I Became Chrissy the Caged Sissy
I am a sissy, or femboy, or tgurl, or shemale? Well either way I like wearing female clothes and being treated like a girl, especially in the bedroom, and now I also like being locked up in a chastity cage that I wear 24/7 now. This is the story of how I became a caged sissy: "Put it on and ... Read full Story
Chrissy Tunnell 2022-01-27 4,154 Crossdresser solo Amateur Masturbation Fetish Blowjob Ladyboy domination Guy Fucks Shemale Sex Toys Mature Homemade
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 1,260 anal solo Cumshot Masturbation Shemale Fucks Guy Big Cock Shemale and Girl domination Mature sissy shemale fucks shemale teen (18+)
50%
De la pucelle quinquagénaire à la mature disponible...
***Prologue - Confessions: Depuis que j’ai offert ma virginité, je me mets chaque jour un peu plus dans la peau d’une femme. Le petit bled où je vis m’interdit de m’exhiber socialement. Totefois je me suis faite une complice, mon épileuse qui me reçoit après la fermeture . Depuis mon nouveau début,... Read full Story
hippocampus_171 2023-01-11 1,819 Crossdresser Amateur Group Sex threesome Big Cock Mature Homemade cum in mouth shemale + shemale milfs Foursome Bi
50%
AMANDINE ⚧️ ⚧️
Le lycée n'était pas un endroit amusant pour moi. Étant plus un outsider geek, plus intéressé par la science, les ordinateurs et la culture pop associée à ces intérêts, cela signifiait que j'avais peu d'amis. Cela signifiait aussi que j'étais si loin de l'échelle sociale que je n... Read full Story
Femboy 2021 2023-03-20 1,023 Stockings Crossdresser Shemale Fucks Guy Shemale and Girl domination Sex Toys
80%
How it started
What got me started off watching shemale porn was actually meeting a very beautiful shemale at a beach party. I already knew she was a guy but she was so beautiful. So at one point I asked her if she wanted to go for a walk and after a few minutes and let her know that I was down. Her response was ... Read full Story
PNPFUCKBOY 2019-02-12 11,862 Teen (18+) Small Tits Crossdresser Amateur Big Tits Outdoor Latina Bareback blonde Big Cock Ladyboy domination Guy Fucks Shemale Interracial Sex Toys Mature Homemade Ass to Mouth
100%
How I became addicted to my toys,
How I became addicted to my toys I tell in this story my experiences by showing how I developed my share of femininity and the toys that I use in bed to amplify my pleasures alone or as a couple. For several years now I have discreetly rented a second garage near my home to store my wigs, dres... Read full Story
sandratvtg 2022-09-20 4,878 Stockings solo Lingerie Sex Toys
100%
From a 50's virgin to a Mature good for all
***Prologue - Confessions: Every day since I offered my virginity, I put myself in the shoes of a woman. The little town where I live forbids me to show myself socially. However I made myself an accomplice, my epilator who receives me after closing. Since my new beginning, male masturbations are not... Read full Story
hippocampus_171 2023-01-11 4,335 Stockings Crossdresser Amateur Group Sex threesome Big Cock domination Mature foursome Homemade cum in mouth shemale + shemale milfs
66%
My girlish desires
My girlish desires, I am happy to spend my weekend at home to live my life as a woman. I apply a depilatory cream to my body, which I leave to act for a few minutes before going in the shower. I take this opportunity to do an enema to avoid unpleasant surprises during my girl games. Then, using ... Read full Story
sandratvtg 2023-01-19 3,981 Stockings solo Cumshot Creampie Fetish Big Cock Lingerie Sex Toys
100%
The Big Mature Shemale Next Door
The Big Mature Shemale Next Door SugarandSalt "Please can I just wear my old swimming trunks?" Warren begged. "No!" his mom yelled back from the other room. "Barbara purchased that for you. It was expensive so you better remember to thank her." Warren looked at himself in the full length mir... Read full Story
Gwapo67 2022-05-03 7,925 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Mature cum in mouth
100%
Hung Shemale has Motorcycle Trouble near Vegas
I drive down a deserted two- lane highway outside of Las Vegas, Nevada. It is August and the temperature is well over 100 degrees. In the distance, I see a tall beautiful mature creature that walks alongside the road. As I pull over, I am stunned by her powerful physique. She sports an incredibly ti... Read full Story
darrell 2024-02-02 5,420 Shemale Fucks Guy Blowjob blonde Big Cock Mature deepthroat cum in mouth toe sucking Fisting Anal
100%
CD/TS Shemale Chrissy Fucked On the Ranch
I met John on the swinger site AdultFriendFinder. He was everything I was looking for: old, in his late 60s, and not rich, but financially stable and independent, owning a ranch that has been in his family for generations. Maybe he could become the Sugar Daddy I am looking for? I am a shaved-smooth ... Read full Story
Chrissy Tunnell 2022-03-04 3,626 Crossdresser Amateur Bareback Fetish Big Cock Ladyboy Lingerie domination Guy Fucks Shemale Mature
92%
A Surprise Relationship
This is a fictional story, although it is based on people I did know. "Tony" and his twin sister "Kim" are based on a set of twins I knew, who were almost identical. I did have a relationship with "Kim" for almost two years, however, the relationship with "Tony&quo... Read full Story
shemale lover 2013-01-29 5,305 anal sex Cumshot Masturbation Blowjob Guy Fucks Shemale
88%
Very Impatient on a sex fanstay
Are you ready for this Mish?" "Not really but it's too late to back out now." I stood in a dark alley before a metal door shaking with both anxiety and the cold, waiting for the door slot to open and for the night to begin. I wouldn't admit it to my friend Simone but secretly I hoped we would ... Read full Story
ASSEaster5678 2018-07-10 10,754 Shemale Fucks Guy Big Cock Ladyboy Guy Fucks Shemale Mature
60%
A real cd explains what cd on cd sex is like
A lot of "strait" guys love shemale porn.I was one of them.Pre-internet I discovered shemale porn but it was hard to find.I had girlfriends but the sex was never great.like many i was more concerned with cumming to soon than actually enjoying myself.Plus,as a porn watcher my fav was anal.M... Read full Story
shemale lover 2012-09-11 3,971 Sex Toys cd shemale porn
41%
My first date with a "shemale"
I met a guy whom i worked with and found out he was bisexual,it didn't bother me nor did i care because i know who i was.I realized he was trying to date me without asking me if i was that way.I flat out turned him down and told him i didn't go that way! I was still young and new to this. I was coo... Read full Story
bmogotti 2020-03-09 13,082 anal first time Small Tits Crossdresser Amateur Blowjob shemale Big Cock Ebony fuck Lingerie Guy Fucks Shemale Homemade motel
57%
Step Into My Office
All right, I admit it. I was an idiot. I never should have worn the butt plug--if “worn” is the right word--in the first place, especially not to work, but I couldn’t help myself. Okay, I guess I could have helped myself; nobody forced me to insert a plug up my ass. It’... Read full Story
shemale lover 2011-11-25 3,989 anal Sex Toys object insertion
100%
Sissy Crissi Chapter 1
Chapter 1 -- One Dreamy Night Like most Friday nights, my roommate Erika would be gone tonight. She and her new boyfriend, Leroy, were taking off for a private weekend. Erika and I had met about two years prior, when we were introduced by a mutual friend. Being fresh off a divorce, I was in need ... Read full Story
shemale lover 2013-01-30 7,919 anal sex Cumshot Masturbation Blowjob Guy Fucks Shemale
100%
Unconditional Love Chapter 8
After a two' hour nap, Alison and I awoke and the first thing we did was make our way to the bathroom to freshen up. I started up the hot water and climbed into the shower and' once she finished relieving her bladder Allie climbed in with me under the hot water and we embraced each other. We kiss... Read full Story
shemale lover 2013-02-04 6,319 anal sex Cumshot Masturbation Blowjob Guy Fucks Shemale
83%
Wife Left Me so I Could be a Girl
I Am The Girl My Wife Did Not Want As the only child of a single mother I grew up around all things feminine. Having lingerie and stockings drying in the bathroom was normal for me and I always loved how pretty the full cut nylon panties and slips with tons of lace looked. I lived at home with... Read full Story
ASSEaster5678 2018-07-09 10,452 Shemale Fucks Guy Ladyboy Mature
80%
Me And Two Shemale Lovers
The ad in the local “underground” paper said “2 hot she-male lovers looking for inexperienced open-minded male for exciting new encounters….” It added a few brief descriptions etc. I thought to myself. “Why not, you’re open-minded and adventurous?” So... Read full Story
shemale lover 2011-08-09 6,532 anal sex shemale oral
66%
A Girl's Best Friend
The party was in full swing when Ryanna and her friends arrived. Of course, they were an hour late, since Glenys had gotten lost on the way. The house was out in the back woods; the owners didn't exactly go out of their way to make it easy to find. Their fellow townspeople probably would have frowne... Read full Story
shemale lover 2012-03-06 5,479 Crossdresser Shemale and Girl oral sex condom sex
88%
MY FIRST SEX WITH SHEMALE
This is some of True incidents happen in my life when i take an office trip at last 2 years. After a long flight, I departed, and made arrangements for my luggage to be sent to the hotel, and then went to a restaurant / bar to get a meal and a drink. I am not a good flyer, and get real nervous durin... Read full Story
shemale lover 2013-12-01 40,038 first time anal sex suck Shemale Fucks Guy Guy Fucks Shemale
54%
Experience with Shemale Kadambari in Pune
PS: this is a genuine experience. Hey, I am back with another story. Let me introduce myself. I am ordinary guy who like to score shemale from Pune. I have already posted one experience with arzoo. So yes let's start, I had a normal chat with Kadambari on what's app discussing the rates. So she a... Read full Story
spidymoto 2020-03-24 6,387 Cumshot Blowjob shemale Big Cock Guy Fucks Shemale indian Indian Shemale Pune Pune Shemale
100%
Shemale sex on a beach
Had to tell you what happened to me recently. I wrote to one of my favourite shemales last week and was telling her I missed sucking and fucking with her due to the current virus situ. Wished I could travel to see her and have some fun and she told me she was away from home too. I asked her where an... Read full Story
xanykeyx 2020-05-07 6,091 suck Outdoor Shemale Fucks Guy shemale cum fuck orgasm Guy Fucks Shemale sex climax deep beach sex
92%
Shemale sex on a beach
Had to tell you what happened to me recently. I wrote to one of my favourite shemales last week and was telling her I missed sucking and fucking with her due to the current virus situ. Wished I could travel to see her and have some fun and she told me she was away from home too. I asked her where an... Read full Story
xanykeyx 2020-05-07 8,739 suck Outdoor Shemale Fucks Guy shemale cum fuck orgasm Guy Fucks Shemale sex climax deep beach sex
100%
A new start in life
“In life, finding a voice is speaking and living the truth. Each of you is an original. Each of you has a distinctive voice. When you find it, your story will be told. You will be heard.” John, living outside Boston, being your average accountant working with Gillette, had gone through a messy di... Read full Story
Jon Paul 2024-05-09 2,901 anal Amateur Shemale Fucks Guy Big Cock Guy Fucks Shemale small cock big ass
94%
My first shemale
This is the story of my first she male. I had always been curious about dicks. I had always been attracted to women and I loved to watch a woman get pounded by a big cock. But after awhile I realized that when I tried to imagine the porno, I always imagined myself in place of the girl. One day, when... Read full Story
shemale lover 2012-02-12 13,259 first time Creampie Shemale Fucks Guy
100%
My Philippine Girl
My name is Angel Smith I am a 23 year old guy with a nice toned fit body, and about a 8 inch dick and for 2 or 3 years I have been fantasying about having sex with a Shemale/Transexual. well T-Girl for short I say. I work as a construction worker and had just recently start going after my fantasy. I... Read full Story
shemale lover 2012-05-14 3,592 anal sex Cumshot Sex Toys rimjob dildo fucking
80%
My Shemale experiences
I have had experiences with Shemales. All in Hawaii. Three different ones. I met them all through yahoo chat when it was still fairly popular. In the 1998-2000 time frame. The first one I met up with was doing video shows in some back area part of Honolulu. She agreed to meet me as long as we only h... Read full Story
trisex69 2015-05-20 6,330 anal Shemale Fucks Guy cum oral
95%
Best session with a T Girl
I like T-Girls. Recently had a chance to go to Costa Rica for work. While I was there I decided to see what Costa Rica had to offer in this department. There is quite a good amount of girls to select from. I started texting this Tgirl and we set a time. I got ready and headed over. It was a Hotel th... Read full Story
horny.hiker 2019-04-30 14,781 Stockings Masturbation Creampie Shemale Fucks Guy Lingerie rimming Ass to Mouth escort ts no lube anal fuck just saliva
97%
Shemale fucks guy - My gf fucks my slutty ass.
I have a shemale girlfriend & we both are in a relationship. One day, I decide to give her a visit. I'm 5'7 guy & she's 6 feet. That makes her tall & intimidating & whenever we meet, it's me who become her gf. I visit her, she takes me in. SHe pulls me towards her while giving me a deep kiss. I ... Read full Story
glodobox 2020-12-04 22,170 Amateur Creampie Shemale Fucks Guy Fetish Blowjob Big Cock Ladyboy Homemade cum in mouth
100%
My first time having sex with a Tranny
I have been obsessed with Trannies for as long as I can remember. There is something about a gorgeous feminine woman with a big thick cock that drives me crazy! I turns me on so much that I kept pushing myself further with my love for Trans women. I bought sexy dresses, underwear and heels to wear s... Read full Story
Joe22lovests 2021-09-15 11,828 first time Shemale Fucks Guy Blowjob Big Cock
75%
A Big thank you to everyone and what's to come next year!
Hi everyone! This is something of a yearly wrap up that I wanted to write up. First I wanted to thank you all for following me this year ❤️ This was the first year that I decided to start taking this seriously and create content full time. I think I still have a ways to go to improve my content, but... Read full Story
Kate Quinn 2022-12-31 3,289 Amateur Big Tits Big Cock Shemale and Girl Guy Fucks Shemale
88%
Girl from Uncle
Tonight, I have to tell it all. It’s no secret that my uncle and I had a very special bond he had been eyeing me with those adventurous eyes from the time that I was 14 years old. And frankly I enjoy his ogling. I could feel my nipples get so hard when he looked through me with those alert and spark... Read full Story
Regina10 2024-02-14 5,182 anal Crossdresser Big Tits Bareback Blowjob Big Cock Ebony Lingerie Guy Fucks Shemale big ass femboy Ass to Mouth cum in mouth
80%
Fucked by Priscilla Gaucha
This black woman always drove me crazy, I always liked her photos and videos on the internet. Unfortunately, when I had the courage to face it, she moved out of state and ended up being left in the lurch. However, one night driving by, I came across her. She was beautiful, strong thighs, well made-... Read full Story
mauricioportoalegre 2024-05-09 3,116 anal Amateur Shemale Fucks Guy Big Cock Ebony
100%
First time with a shemale
well this all happened about two years ago when i was 18 i always have had fantasies of having a cock in my mouth and ass but i wasnt attratced to men jusst the cock so i decided to find a shemale. i live in a small town and thats hard so i found one about an.hour away in the city. so i talked to he... Read full Story
shemale lover 2012-11-04 4,344 first time anal sex orgasm