Sort by
Relevancy

Free Stories

100%
The Society
I met her during the summer. I was only nineteen and working to save some money for college. I had been raised by my grandparents who had both passed away over the past year. After the burial costs I was far from wealthy. My parents weren't around so I was on my own at a young age. I had moved a cou... Read full Story
shemale lover 2013-01-10 17,587 Crossdresser sucking Big Cock ass licking big boobs
100%
Uncle sweet Lover
Uncle Barney called me this morning and wanted me to keep my evening free. He wanted to meet me at the motel with a surprise for me. I was so excited and could hardly wait. I had to decide on something to wear, but when I thought about it, I realized that I wanted to wear something special. He would... Read full Story
Regina10 2024-02-19 5,136 anal Crossdresser Big Tits Creampie Fetish Blowjob Big Cock Ebony Ladyboy Guy Fucks Shemale Mature big ass femboy
100%
KING OF TRANNY CHASERS ENTRY 2
LAST YEAR TO CELEBRATE MY BIRTHDAY I DECIDED TO FULFILL ONE OF MY SEXUAL FANTASITES. I HAD BEEN WITH 2 CIS WOMEN SEVERAL TIMES BUT NEVER HAD I BEEN WITH 2 TRANNIES. MY BIRTHDAY WAS ON A FRIDAY SO I SPENT THAT DAY AND THE NEXT CELEBRATING WITH MY FAMILY AND GINA..THAT SUNDAY I SET UP AND PLANNE... Read full Story
Ghostface drillah 2024-07-04 3,270 anal Amateur Group Sex Big Tits Cumshot Shemale Fucks Guy Fetish Big Cock Guy Fucks Shemale big ass Homemade Ass to Mouth shemale fucks shemale
100%
Jo, Shemale Goddess! Part 1
Jo plumped the cushion and carefully positioned it until it was precisely at the right angle. Nothing less than perfection would do. Ricki, her friend of twelve years was coming to stay overnight and she would notice if the tiniest thing was out of place. An impatient knock on the door signalled ... Read full Story
shemale lover 2011-09-04 5,676 anal sex sucking shemale
50%
Clinton
"How many inches?" she asked. "Twelve," he said. "Really?" "Really." "If you're lying, you're just wasting your time." And mine, she thought. "I'm not." "Okay, then. It's a date." Tiffany hoped the jerk was te... Read full Story
shemale lover 2011-09-19 10,898 Big Cock cunt anus
93%
First Time I tasted Tgirl Sperm
I met a Mexican Trans girl online from Hermosillo and we hit it off and corresponded for a a few months. The vibe was good and ended up deciding that I would help her pay the $140 bucks for her 6-month tourist visa to come up and visit..the process took forever but once she got it, I booked her a pl... Read full Story
AllenB 2022-08-09 9,170 Crossdresser Amateur Cumshot Latina Bareback Creampie Shemale Fucks Guy Fetish Blowjob Interracial Homemade cum in mouth
72%
ACROSS THE STREET AND TWO DOORS DOWN by Spanky de Bautumn
Jamie knew he was different. He didn’t fit in with the other boys, but he didn’t feel like he fit in with the girls either, he just knew he was different. He wasn’t into dolls or balls. He was the smallest boy in his class and more than half the girls outweighed him. But the one thing he had going f... Read full Story
SpankydeBautumn 2021-01-29 11,657 Teen (18+) Small Tits Crossdresser Fetish Blowjob Lingerie Guy Fucks Shemale cum in mouth
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 14,295 Teen (18+) Crossdresser Amateur Cumshot Masturbation Blowjob Big Cock Ladyboy Lingerie domination Guy Fucks Shemale Homemade Compilation Vintage cum in mouth
100%
ROBERTO’S SECRET by Spanky De Bautumn
Cody Daniels was only trying to help her country; she never dreamed things would come to this. She was patriotic and felt compelled to do whatever asked of her to aid in the capture of the terrorist known only as "Roberto". But lying in his bed, bound and gagged, Cody wondered why she let herself go... Read full Story
SpankydeBautumn 2021-01-22 5,127 Crossdresser Cumshot Creampie Fetish domination Guy Fucks Shemale
91%
Masturbation fantasies: Amanda, queen of the peep show
A guy visits a peep show with unexpected results. As he gets to watch a girl with something special, he discovers his hidden desires. This story contains: peep show – voyeur – gloryhole - fake tits – group masturbation – male masturbation – shemale – frottage - titfucking When William finall... Read full Story
ThatEroticWriter 2019-07-24 8,697 Big Tits Cumshot Masturbation Uniform Frottage
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 7,435 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Mature
50%
KING OF TRANNY CHASERS ENTRY 1
IT WAS AROUND 1AM AND MY GIRL FRIEND GINA AND I ARE GOING AT IT.HER NAKED BODY WAS HANGING OFF THE BED IN DOGGY.HER BIG CARAMEL ASS CHEEKS JIGGLED AS A POUNDED FROM BEHIND. SHE WAS SCREAMING "YES BABY" AND MOANING NON STOP..AS BEAUTIFUL AS SHE LOOKED AND HOW AMAZING HER BACK SHOTS WERE LOOKING..W... Read full Story
Ghostface drillah 2024-07-02 2,846 Amateur Big Tits Masturbation Big Cock Ebony Guy Fucks Shemale big ass Homemade Ass to Mouth cum in mouth
87%
Southern Hospitality Ch. 03
XtinaSmith2017 Ash looked himself over in his bedroom mirror critically, finding himself oddly self-conscious about his looks. He had been texting Laura all throughout the day and they had agreed that dressing pretty casual would draw the least suspicion, so he had. He wore a simple patterned ... Read full Story
Gwapo67 2022-05-16 5,012 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock Mature cum in mouth
90%
Why does cock look so good on a girl ?
Horny and looking for something to jerk off on, of started surfing porn sites looking for just the right hottie. Pornstar Christie Lee really gets my juices going so I clicked on her. I started watching the video I was familiar with and knew would get me off when I decided to check out all her video... Read full Story
Verdura08 2022-10-17 6,378 Crossdresser Amateur Cumshot Big Cock ts posing huge dildo
60%
Filthy Little Beast Part 2
Chapter 8 The first thing that struck me was pink! More pink satin than I thought existed in the entire world. The walls were covered in baby pink satin curtains, the plush carpet was also baby pink. Like all the other rooms in this house of the bizarre the ceiling as a full mirror. There was a h... Read full Story
shemale lover 2011-12-02 7,522 taboo Fetish crossdressing erotic encounters
50%
Transvestite father异装癖的父亲和儿子被农民工虐待
'migrant worker S, good at foul language and humiliation, SP, heavy hands, is it acceptable?' On the SM dating software, a message popped up. Migrant worker S. What the hell? I casually click on his information, 39Get 186 and 76, dynamic is full of handsome muscles, muddy shoes, a glimpse of gar... Read full Story
Oldslut Sissy 2024-08-21 2,080 Amateur Big Cock Asian Sex Toys Mature sissy chinese
62%
Naples
I had been at sea about a month when my ship pulled into Naples, Italy. The only action I had seen had been slipping away to my hiding place on the ship to jack my dick on a regular basis. I was ready to find some Italian pussy. I was slim about 6' with blonde hair and a fat 7" cock that ... Read full Story
shemale lover 2011-12-16 6,663 Teen (18+) shemale gay
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 18,860 Amateur Shemale Fucks Guy Fetish threesome Blowjob domination Guy Fucks Shemale Ass to Mouth shemale + shemale
90%
Camming Down the Rabbit Hole Ch. 08
A familiar sensation greeted me as my eyes opened and a yawn escaped my mouth, that oh so delicious feeling of my morning wood straining against my silk night ware. It was becoming an ever occurring pattern that no matter how large the orgasm the night before I would wake with the hardest of cocks, ... Read full Story
Dani_does_Dallas 2021-11-15 4,140 Stockings Small Tits Crossdresser Amateur Cumshot Masturbation Fetish Uniform Lingerie Homemade self sucking pov cum in mouth
57%
Transsexual Actresses Part 1
The adult entertainment market includes thousands of videos and DVD's featuring transsexual actresses. Some of the more popular of these celebrities have their own web pages. Brief profiles of some of these actresses, including a list of their films, appears after the initial list. Adriana Ventur... Read full Story
shemale lover 2011-09-08 9,476 shemale transsexual porn star
80%
A Fairy Tale Part 1
=-=-Chapter One-=-= "Heather?" My boyfriend was knocking on the bathroom door. "What's wrong, are you okay? Heather?" "Yeah..." I swallowed thickly and that was a mistake. I threw up some more, kneeling on the floor, feeling like I was dying. "Heather?&q... Read full Story
shemale lover 2011-12-06 11,785 Bareback cum ass fucking slave
100%
Camming Down the Rabbit Hole Ch. 07
Opening my eyes I struggled a little as the residual cum on my face from last night’s show hadn’t been fully wiped off, I felt the dry and crusty leftovers crinkle on my skin, but couldn’t help but smile to myself as I remembered how it had got there. The intensity of that orgasm had been on another... Read full Story
Dani_does_Dallas 2021-10-22 6,564 Stockings Small Tits Crossdresser Amateur Cumshot Masturbation Fetish Lingerie Sex Toys Homemade self sucking pov cum in mouth
100%
The Next Level
Nitromethane It's been a couple of weeks now since I sucked my last shemale cock and swallowed her load, and with enough distractions, it hasn't been too difficult keeping myself preoccupied and my mind off of satiating my new fixation. Still though, I do have my moments when I sit back and imagi... Read full Story
Gwapo67 2022-02-01 6,172 Bareback Creampie Shemale Fucks Guy Blowjob Big Cock gangbang domination cum in mouth
71%
Filthy Little Beast
I had very few memories of my early childhood. The ones I did have were anything but pleasant. I did remember my mother and her blind hatred of my father and myself. She was very tall blonde woman with cold blue eyes named Monica. My mother always dressed in the most expensive leathers and satins in... Read full Story
shemale lover 2011-12-02 12,702 taboo Fetish crossdressing erotic encounters
90%
Big Daddy
BASED ON ACTUAL EVENTS As is the case with most hard drug users, you start off small and end up making your way up. Since I was 15 I had been smoking weed. One of my friends had introduced me to some other drugs like meth or coke a few years later. The weed was still a big influence but it all se... Read full Story
shemale lover 2012-06-09 6,260 Crossdresser Cumshot Fetish oral sex
100%
Hung Trans Lesbians Fuck Two Ladyboys
Note 1: If you like Transsexuals, Trans Lesbians, Asian Ladyboys, Big Cocks, Extreme Cock Sucking, Anal Fucking, Anal Fisting, Semen Swallowing, Role Play, Orgies, BDSM, Cock Sounding and Foot Fetish this story is for you. Note 2: All the characters are over 21. The names are fictitious, but some... Read full Story
darrell 2022-01-03 4,644 Group Sex Big Tits Cumshot Bareback Fetish Blowjob Big Cock Asian Ladyboy Sex Toys Mature cum in mouth shemale + shemale
100%
Camming Down the Rabbit Hole Ch. 11
I sat there for some time, my phone still in hand. I couldn’t fully comprehend the situation and where I was. All this started when I was put on furlough and thought I would be losing my job, an idea born out of boredom, hornieness and desperation. What started as a regular cam show with a guy hopin... Read full Story
Dani_does_Dallas 2022-04-25 4,463 Crossdresser Amateur Cumshot Masturbation Blowjob Uniform Lingerie Shemale and Girl Sex Toys Homemade self sucking pov cum in mouth
100%
Camming Down the Rabbit Hole Ch. 12
We woke up many hours later, still intertwined, my morning wood throbbing as Ellie slid inside my panties and wrapped her hand around it. This was a much better way to wake up than usual, and we proceeded to have a really relaxed slow fuck. She reached a much more low key orgasm but I knew I wouldn’... Read full Story
Dani_does_Dallas 2022-05-09 5,583 Crossdresser solo Amateur Cumshot Outdoor Masturbation Blowjob Shemale and Girl Sex Toys self sucking pov cum in mouth webcams
100%
Regina's scary, and sexy Blind Date
I had just finished doing my makeup, finally deciding which blush to use, and I thought I had some time for my meditation. However, Mr. Cobb was early. The gold minidress I wore showed enough legs, ass and tits to make any man horny, and the strappy tanned five-inch sandals, made me feel majestic ... Read full Story
Regina10 2024-03-18 4,974 anal Crossdresser Bareback Creampie Fetish Blowjob Ebony Guy Fucks Shemale big ass sissy Ass to Mouth cum in mouth
80%
The Farm
“See you Sunday, baby,” said Marcus Jenkins to his wife, Tasha. “Alright! Have a good day at work,” the wireless phone company retail store manager smiled. “Love you, Kobe! Love you, Tiara,” the wastewater plant operator said to his offspring. “Love you, too, daddy,” the youngsters rang out in un... Read full Story
Faggyboi and Puzziboi 2021-12-08 5,875 Teen (18+) gangbang Guy Fucks Shemale sissy femboy Ass to Mouth
92%
The Girl Next Door Ch. 02 by derezzed ©
Chapter 2 – Taking the Next Step Into Depravity Michael hardly got any sleep that night. When he did his dreams were filled with images of Jenny and her large penis. He tossed and turned in frustration. As he rolled over for what felt like the thousandth time he was blinded by the sunlight that h... Read full Story
StevelovesTgirls 2019-06-11 12,780 Amateur Big Tits Blowjob Big Cock Guy Fucks Shemale
100%
A Fairy Tale Part 2
=-=-Chapter Six-=-= I woke up sometime later and I was feeling better, even a little hungry actually, and I wanted a shower and I needed to pee and...I cocked my head as I heard the unmistakable sounds of Mistress Stacy's bed moving. She had a large one, king sized, with old springs or somethi... Read full Story
shemale lover 2011-12-06 6,945 Creampie Big Cock ass fucking
50%
La pistola NEGRA del Tío, entre Las Bragas de Mi Tía LA PUTONA
Aaayyy.. Yo sabía que la Tía había sido Flor de PUTONA.. pero, jamás me imaginé que me iba a tocar a mí 'hacerme cargo de sus cosas'.. su 'herencia'.. la casa ya vieja, por reordenar destinar y.. LAS COSAS que una descubre ya con los años! Todo estaba igual, pero HORRIBLEMENTE ARRUINADO.. más, e... Read full Story
Ari Riè 2021-06-03 2,337 Teen (18+) Small Tits Crossdresser Latina Bareback Shemale Fucks Guy Fetish blonde Big Cock Uniform Lingerie domination Premium HD
100%
Exposure, Disclosure
The Greatest Liar, Exposure, Disclosure © Alexandra Rios 2019 Author’s Note: This is a continuation of the narrative which commenced with “My Awkward Phase”, which I posted here previously. Readers may wish to read that before continuing, although I have written them to stand alone. Natives s... Read full Story
the greatest liar 2019-06-18 7,955 Teen (18+) Small Tits Amateur Group Sex Latina Blowjob gangbang Guy Fucks Shemale cum in mouth
65%
Marcia Goes Back to School
Marcia was painfully nervous. She hadn't been able to eat very much in days. The upside was she was even skinnier which would make Mistress and her husband very happy. She'd always been thin and on the diet Mistress Carol had her on she was already thinner than she dreamed possible. Her anxious stom... Read full Story
shemale lover 2012-12-19 10,832 Masturbation Blowjob blonde ass fucking big boobs
76%
Porn Princess
They say if you are going on a journey of revenge, to dig 2 graves, one for your enemy and one for yourself. I thought I understood the meaning of that saying, but never so much as right now. My name is Dan, and at the age of 21, I had been working for nearly 2 years as a production manager for ... Read full Story
shemale lover 2012-09-02 24,256 Cumshot Blowjob fuck fingering big boobs
85%
BANGING AROUND BANGKOK
BANGING AROUND BANGKOK: THE AMOROUS ADVENTURES OF CAITLIN "MEOW" MORRISON after living and working in Thailand/SE Asia for many years i decided to write an erotic story based on some of the people i have known, venues and places i have been, and the P4P night-scene where i spent way too much... Read full Story
bkkldby 2019-06-17 14,410 first time Teen (18+) Amateur Group Sex Big Tits Cumshot Outdoor Bareback Blowjob Big Cock Asian lesbian public place
100%
The Mocha Club... A Wife's Awakening
Fran had spent a restless evening in her hotel room, flicking through the channels on the television, finishing the large glass of red that room service had brought her and writing up the actions from the client meeting earlier that day. Now she was bored. It didn't help that the hotel her manager h... Read full Story
ASSEaster5678 2018-07-09 9,238 Amateur
100%
The game show,
One day i was looking through a number of competitions and trying to find a way to make some easy quick money. A number of applications were sent, mostly for junk i didn't need or for competitions I knew I had no chance of winning. For example, the types you get $30,000 for answering the easiest que... Read full Story
chris1989r 2022-01-24 5,060 Bareback Shemale Fucks Guy Ebony gangbang Guy Fucks Shemale shemale + shemale
100%
Betrayed Chapter 10
I would have loved to be waiting at the gate at O'Hare when Dianna de-planed from L.A. that Sunday night. I had to settle for the Baggage Claim Area. Those people working for the Transportation Security Administration have no sense of humor. I guess at eight dollars an hour, they can't afford one. T... Read full Story
shemale lover 2012-05-30 4,895 hardcore shemale fuck
92%
Southern Hospitality Ch. 04
XtinaSmith2017 Ash awoke feeling cold, he pursed his lips a little and shivered, curling up a little tighter, nude as he was, the action brought little relief from the cool air. He let out a soft murr of discomfort as his mind shook off the cobwebs of lingering dreams, he could see light throug... Read full Story
Gwapo67 2022-05-16 6,996 Big Tits Bareback Creampie Shemale Fucks Guy Blowjob Mature cum in mouth
50%
Sissies Training Part 2
I drifted in and out of consciousness over the next hour, periodically snapped back into reality when the dildo assaulting my mouth would pause deep in my throat and eject a fresh deposit of cum into my bowels. Looking up at the television display of my abuse I would normally have been turned on by ... Read full Story
shemale lover 2011-09-17 6,745 shemales Fetish bdsm
76%
Nylon teasers
They came into the video store where I worked as a clerk. Almost every day. Teasers. Both of them. What made it both great and terrible for me was that it fed my deepest fetish -- stockings -- as it denied me any fulfillment other than frequent and frantic "self-gratification."... Read full Story
shemale lover 2012-01-30 10,152 Stockings Big Tits fucking foot fetish
84%
Lesser of Two Evils
My name is Eric. At 21, I was working as the IT guy at a prominent Caribbean cruise company. My days were usually pretty boring. Fixing computer problems were usually a no brainer for me. People are so stupid when it comes to how they use their machines that I assume there will always be a need for ... Read full Story
shemale lover 2013-03-27 23,042 hardcore Cumshot sucking ass fucking Guy Fucks Shemale
50%
The Chronicles of Drodge Mallea
Drodge awoke feeling fuzzy headed and stiff. Actually, "awoke" wasn't quite right -- "came to was more like it. She sat up in the lavishly furnished boudoir, stretching her athletic 6-foot frame as she did. Running a hand though her short, thick copper locks, she slipped out of the... Read full Story
shemale lover 2011-10-24 3,206 Cumshot shemale Big Cock
96%
Family Frolic
FRIDAY My sister and her husband wanted to take a few weeks off in the sun and asked me to look after their kids for a while. I'd move out of my tiny apartment and into their house for the duration. As I was still living off my severance and they had a nice spread with an indoor pool and a h... Read full Story
shemale lover 2012-01-14 31,340 strapon porn
91%
Panty Town
Chapter One -- Jamie Jamie Sanders did not think he was a sissy. Growing up, he played with trucks and showed his innate male aggression though soldiers games with the other boys. He climbed trees and watched baseball with his Dad and brother. Unfortunately, by the time he was in eighth grad... Read full Story
shemale lover 2012-01-29 19,678 Big Tits sucking ass licking fucking
100%
Young Sissy Chapter 1
I don't know how long I was under...days, weeks...who knows, maybe even months. Reality blurred with nightmares as I felt my flesh being cut into by cold scalpels and stuck with needles, filling me with horribly persuasive dreams of a beautiful new body. I tried to imagine myself as a man, just to s... Read full Story
shemale lover 2013-01-04 10,440 sucking Fetish Uniform domination big boobs
87%
Chicago TG Romance (part 2)
As you must read part one of this story, one of the most interesting and attractive T-girls I have met is sleeping beside me in my motel room after a wonderful evening of being together. Beth awakened around 4am and got up to go to the bathroom. She was brushing her teeth and heard me stirring, I di... Read full Story
Jon Paul 2018-06-04 6,196 Amateur Shemale Fucks Guy Blowjob Asian Ladyboy Ass to Mouth cum in mouth
60%
The Creators: Book One by
Chapter One: The Life Giver BRANDON My twin sister is dead, but she’s not gone. Death is a tragedy in the remote village of Towerhead, but it’s not a rarity. Farming accidents, disease, famine, natural disasters, you name it, it kills people in Towerhead. So, six years ago, when the oxen-pul... Read full Story
sagga 2018-09-18 30,608 Teen (18+)
93%
Sissy Experience - Episode 1: The Beginning
Hello All, Hope you’re all doing well!! This story narrates the beginning of my crossdressing and sissy adventures. Before I begin I’ll tell you somethings about my family. We are a family of four consisting of me, mom, dad and an elder sister. I am currently 20 years old and in college. My da... Read full Story
brownsissyboi 2020-05-15 8,334 Teen (18+) Crossdresser solo Amateur Cumshot Masturbation Fetish Asian Lingerie Homemade
100%
First Time I Experienced Eating a Tgirl Out
So this is likely going to seem tabboo for some and if this is not your thing, I respect that but everyone is different. Eating pussy came natural to me like it does for most guys once they start having sex with girls. Other than one time 69ing with a female and having what I would call "incidental ... Read full Story
AllenB 2022-10-21 5,416 Amateur Big Tits Cumshot Latina Creampie Fetish Blowjob rimming Homemade cum in mouth latina ts
66%
Would You
'Would you...?' 'Look the part to play the part....' 1 5' 4...dreaded, and to be dreaded....bookish, be-spectacled—damn near owlish....so much so that you might miss the way her tits spoke to you no matter how much she attempted to 'silence' them ....that you might miss the way her sk... Read full Story
shemale lover 2012-09-23 6,796 sucking cum massage
95%
Hot for Teacher
Jack was enjoying his going away celebration, as he prepared to move from teaching high school to college. He had spoken with many of his former students, and found it endearing that so many of them cared enough to show up at the party. By the end of the evening, though, there was still one young wo... Read full Story
shemale lover 2013-01-05 16,814 sucking Blowjob Big Cock handjob
50%
I and the old man's story 后面中文
I am from Chongqing, a boy who loves his father. When I was young, my neighbor aunt always said I looked like my sister, like a beautiful girl. At that time, my family was relatively poor. My Sister, my parents, and my family of four lived in public rental housing of less than 30 square meters. Star... Read full Story
Oldslut Sissy 2024-04-15 9,451 Crossdresser Amateur Masturbation Asian Ladyboy Guy Fucks Shemale Mature small cock Homemade sissy chinese teen (18+)
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 4,590 Stockings Crossdresser Amateur Group Sex threesome Big Cock domination Mature foursome Homemade cum in mouth shemale + shemale milfs