Sort by
Relevancy

Free Stories

0%
Latex succubus
The lights of the city obscured the supposedly brilliant starlight in the night sky, leaving only dim and scattered scattered stars adorning the gloomy night sky half-covered by dark clouds, and the crescent-like crescent moon guarding it in the distance makes the night seem less empty Lonely. Mayb... Read full Story
Alicexiao 2023-01-06 4,281 Crossdresser Cumshot Creampie Fetish domination Guy Fucks Shemale high heel boots
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 7,352 Big Tits Cumshot Shemale Fucks Guy threesome blonde Big Cock Lingerie Shemale and Girl redhead Homemade Shemale fucks couple
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 4,285 Group Sex Cumshot Shemale Fucks Guy Blowjob blonde Big Cock Asian Shemale and Girl Sex Toys Mature Ass to Mouth shemale + shemale
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 2012-12-21 118,631 hardcore Cumshot sucking bdsm domination
100%
A Tale of Cum and Passion
It was an anonymous meeting, set up through a popular Internet site. The profile specified I was looking for a transsexual or a transgender woman with nice legs and feet. Basically I was looking for a chick with a cock to satisfy my fetishes for legs, stockings, feet, cock, and cum. Victoria walk... Read full Story
shemale lover 2012-07-06 4,045 anal sex Cumshot shemale oral sex
66%
Dirty Business Trip
Chapter 1: The Transsexual Hotel Encounter "Yes, I am checking in," I said, putting my credit card on the desk. The woman behind the desk took the card and looked at the name. She was about 5 feet 10 inches tall with dark black hair and brown eyes. Her skin was beautifully tanned and he... Read full Story
shemale lover 2012-09-26 12,790 Group Sex Cumshot shemale oral
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 32,520 Cumshot Shemale Fucks Guy Blowjob Big Cock Ladyboy cum in mouth
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 4,359 Amateur Cumshot Bareback Shemale Fucks Guy Blowjob blonde Big Cock Asian domination Guy Fucks Shemale Ass to Mouth cum in mouth shemale + shemale
100%
Daddys Little Slut
I have been living with my dad for the last year after my mum who is Indian, found out that I was doing lots of drugs, and that I was bi and also a cross dresser. We never talked about it as for me, the cross dressing was on and off and usually when i was high. When i turned 25, I tried meth, and fo... Read full Story
aishacox 2023-01-31 5,249 Crossdresser Cumshot Fetish Blowjob Latex
93%
MILF Alessia Travestita finds a bottom boy
I was several days into a cruise to New Zealand and Australia with my wife. This morning my wife went on an excursion that I had no interest in, so I had the cabin to myself. I hadn't had any sex with my wife in the last 3 days due to the activities such as the various jaunts to Auckland and the sur... Read full Story
darrell 2023-08-13 6,090 anal Cumshot Shemale Fucks Guy Fetish blonde Big Cock domination Mature deep throat cum in mouth sandals
100%
Blossoming Shemale
My name was James. It was, before everything that happened, anyway. I'd come from pretty good stock, as the snooty, upper class would likely say. I guess I still did, although it would take a DNA test to prove it now, and to be honest, I didn't really have the desire. That was all before. I have to ... Read full Story
shemale lover 2012-08-01 4,957 Cumshot shemale Big Cock oral sex
63%
Julie's First CD Night on the Town
There was a parking lot that was out of the way where I changed into my set of girl clothes for my night of adventure. The nylon underwear was tight and sleek, I had a raging hard on as I drove into town. I had been planning this night out for quite a long time and was hoping to get my butt well ... Read full Story
shemale lover 2012-09-10 4,383 Crossdresser Cumshot condom sex heels
100%
Danielle's First Meeting
Daniel stood on the front porch and waited for his date to arrive. Well, Daniel at this particular time was actually Danielle. You see, Daniel was a crossdresser. Danielle was his female alter ego. He was 37 years old, medium build, average you might say and stood 5-feet-10-inches tall, weighing in ... Read full Story
shemale lover 2012-06-18 4,226 Stockings Crossdresser Cumshot shemale oral sex
92%
T-Girl Meets T-Girl
It was a silent car ride home. He looked at her, she looked out the window. She looked at him, his eyes were on the road. Neither of them broke the silence. It stayed that way until he parked in her mom's driveway. The soft-spoken young man told his girlfriend, "Goodnight Ashley. I'll call y... Read full Story
shemale lover 2012-08-29 6,123 anal sex Cumshot shemale and shemale domination blondie
91%
My Seductive Secret (True Story)
During my childhood, me and my brother used to play with two other boys who were our neighbors every weekend. One day we decided to wrestle, and I took on the youngest one, (he was about 2 years younger than me, like my brother) and we wrestled in the shed while my bro and his bro (who was my age) w... Read full Story
Chickzdigmeyup 2019-06-18 13,981 Stockings Teen (18+) Small Tits Crossdresser Cumshot Outdoor Masturbation Bareback Fetish Blowjob Big Cock Lingerie domination Sex Toys Homemade cum in mouth
100%
Revenge is Sweet
Henry Stewart was thirty five years old, married to a very attractive woman who'd given him three kids, he owned and ran his own very successful computing company in San Diego, "Stewart Computing", meanwhile he owned a large house in the wealthy small town of River Falls. All in all, Henry... Read full Story
shemale lover 2012-09-01 7,691 Crossdresser Cumshot Masturbation Lingerie heels
100%
Male or Shemale, Still a Slut
Part 1 My name is Brandon. I'm 18 (still in high school), 5'5", white with black hair, and rather feminine. I'm really slim with barely any body hair. All this has combined so that I'm not so popular with the ladies, which sucks cause I am one horny son of a bitch. Luckily, I'm rather fond ... Read full Story
shemale lover 2012-12-20 9,253 Cumshot sucking blonde ass fucking Guy Fucks Shemale
75%
A Couple And A Shemale Encounter
Not long ago I was sitting home alone on a Friday night with nothing much to do and feeling horny so I decided to go out. I showered, misted myself with my favorite perfume, put on a sexy black bra, rolled on a silky new pair of jet black sheer to waist pantyhose, slipped into a tight, very short, l... Read full Story
shemale lover 2011-08-26 5,151 anal Creampie shemale
100%
A Not-So-Small Piece of Heaven Chapter 2
I awoke the next morning and groggily rubbed my eyes. I tried to remember everything that had happened the night before. It all came flooding back to me. I remembered going to dinner with Vicky, her spraining her ankle, us coming back to her apartment, the initial kiss, the trip to the bedroom, and ... Read full Story
shemale lover 2012-04-28 2,600 anal sex Cumshot oral sex
50%
Spy Girl
Vicki stood in the dark doorway as she watched her mark, Ivan Patrinkov, approach up the empty street. There was no way he would be able to see her where she stood in the shadows. She wore a skin tight leather jumpsuit with black low-heel boots. She would have preferred to have on a pair of stiletto... Read full Story
shemale lover 2011-11-09 4,657 anal sex shemale Frottage
100%
Shawshank affair
Courtrooms can be a scary place. They smell like older leather, the wood paneling has been polished with oil and each sound penetrates your body like a loud smack from a cap pistol, which echoes in the forest, especially the gavel smacking on a block from the Judge. I felt strongly that I would be f... Read full Story
Jon Paul 2018-08-20 6,531 Stockings Crossdresser Cumshot Bareback Creampie Shemale Fucks Guy Blowjob Ladyboy Guy Fucks Shemale Ass to Mouth cum in mouth
25%
Fantastic threesome w/ Miranda Pinocchio & Danielle Albuquerque
Today taken by the craving for something really big I call Miranda who answers me immediately and despite the language barriers and her way of speaking not always understandable we agree for 70 and a quiet thing. I sling in Naples, central area, the usual low in the alleys between via Marina and the... Read full Story
RonWisley 2020-05-04 4,626 Amateur Cumshot Shemale Fucks Guy threesome Blowjob Big Cock
100%
The Big Tiddy Goth Girl
Hannah and I went to the pool in my apartment complex. This was my first time dressed as female in public and I was loving my new, feminine tan lines. To keep a long story short, while tanning we were perv'd on and approached by a guy calling himself Mark. He was desperate for our attention and fumb... Read full Story
KaceyKlarissa 2024-02-23 4,756 Crossdresser Big Tits Cumshot Masturbation threesome Big Cock Shemale and Girl small cock big ass sissy femboy cum on tits goth
100%
Shemale snapped
Camilla took a few steps out the door of her balcony to get a feel for the temperature. Thankfully it was cool out. It had been a hot day, which meant a cool night was welcomed. She closed the door and pulled out a pair of gold hoop earrings. She was suffering from a mild case of the jitters. The... Read full Story
shemale lover 2012-06-21 6,177 anal sex Creampie shemale Big Cock
87%
Wife fucked by shemale
This is the story of me Rittu married to a guy named Harvinder in 1996. We had 2 kids from our marriage .Harvinder was very fond of girls and even before my marriage he use to fuck prostitutes right from young girls to middle aged women. He used to get his cock sucked and even used to fuck these pro... Read full Story
shemale lover 2012-07-30 7,104 sucking shemale fucking
88%
My first time as a Femboy CD pt 2
David ordered me to dance for him and I hurriedly got off the floor and walked over to the radio and turned it on. I changed the station from an alternative rock station to a top 40 one, which was better for dancing. After I selected the station I moved to the center of the room and started to dan... Read full Story
Nicole_femboyCD 2014-12-03 20,974 anal Crossdresser Cumshot Blowjob rimming cd
100%
TO BE OR NOT TO BE – FINAL ACT
TO BE OR NOT TO BE – FINAL ACT by Spanky de Bautumn Part 7. Sunny spent the night with Antonio and the next day they went to Mel and Shari’s for some fun. Antonio had school, so he was up and out early on Tuesday. Mel was in the shower and I was laying in bed, my mind wandering and not real... Read full Story
SpankydeBautumn 2021-03-02 2,456 Small Tits Crossdresser Cumshot Bareback Creampie Blowjob Big Cock Lingerie Guy Fucks Shemale cum in mouth
100%
Philippines Vacation with a Dominant Big Cock Ladyboy
I am still in a state of unbelievable joy that I was lucky enough to experience this but I 100% did and I can’t stop thinking about it as I thought things like this only happen in porn or fantasies. Buckle up because this is a wild one and happened in Manila May 2024. I had the opportunity to vi... Read full Story
AllenB 2024-07-01 1,016 Crossdresser Cumshot Bareback Creampie Shemale Fucks Guy Big Cock Ladyboy Guy Fucks Shemale cum in mouth domination act filipina ts filipina ladyboy
86%
Shemale Sherri Arrested for Theft
Sherri had had a tough night. First she was involved a little confrontation with a skinny bitch who thought that just because she had a vagina made her hotter than Sherri (and no, it didn’t), and then Sherri borrowed a bottle of whiskey from some advertising executives who called the police on... Read full Story
shemale lover 2013-06-29 5,182 tranny ass Cumshot shemale fingering domination
87%
A girl called Eddie
Carrie had always treated me like her little sister, even though we were only third cousins. Though she was only two years older than I was and not of exceptional physical stature, I had allowed her to dominate me for as long as I could remember. Not that she was exceptionally cruel or abusive in an... Read full Story
shemale lover 2013-07-19 4,647 Crossdresser Cumshot sucking domination spanking
93%
My lesbian shemale adventure
My name's Kimmi and I used to be a stripper. I'm a genetic girl, and I always had a wild streak. Guys liked me 'cause of my long blond hair, slender build, and sense of humor. They also liked my 36C breasts. I danced at a place on Sunset Blvd in Hollywood (this is a true story, so I won't use the... Read full Story
shemale lover 2013-07-20 3,802 Cumshot Shemale and Girl big boobs handjob kissing
100%
Erotic Dreams come true.
You start having intense erotic dreams — and the faces you see is one you don’t recognize but that feels familiar. Mandy was that girl that Chad had been dreaming of, the kind where to see her made a rush go through you like a hot flash. Chad had just broken off a relationship, and his sister war... Read full Story
Jon Paul 2023-05-26 4,828 anal Stockings Big Tits Cumshot Bareback Fetish Blowjob Guy Fucks Shemale small cock
80%
Buffy the Shemale Vampire Slayer Part 13
Buffy's cock slipped out of Baubo's mouth, and she licked the smooth skin of the stiff, elongated shaft with her tongue. Baubo had no hands, but, even so, she was a superb cock sucker. More than once, she brought the Slayer to the brink of orgasm, then backed off, letting Buffy's sexual passion abat... Read full Story
shemale lover 2011-08-23 3,716 Masturbation pussy shemale
85%
Crossdresser At XXX Movie
It was hot and the sun felt like it was going to melt me. I was walking home from work. I never drive that much and I just got off the bus for a fast beer. I walked past this XXX Movie house and thought what the fuck, it has air and it is so hot. So in I go. I should say that I'm somewhat Bi. Tha... Read full Story
shemale lover 2012-03-30 3,975 anal sex Creampie handjob rimjob
100%
Big Surpise In Small Package
It was a Friday night and I was extremely horny and just my luck my girlfriend was out of town, but I wasn't horny for her I was craving cock. I knew I was bi for a long time and loved to have a nice hard cock to play with every once in awhile. So I decide to call my girlfriend to tell her I was goi... Read full Story
shemale lover 2012-06-11 4,256 anal Group Sex Cumshot Blowjob
100%
Karen, My School Teacher Part 4
Meeting my other teacher By FoxyHosed Next morning as I woke up, I jumped in my clothes and got myself a coffee, and went to school. I got in 15 minutes early because I didn't want to run into Karen. As I entered the door to the school, I saw some of my classmates. I thought the coast was clea... Read full Story
FoxyHosed 2021-02-17 7,755 Crossdresser Cumshot Masturbation Fetish Blowjob Big Cock redhead pantyhose feet toes legs cock ass pantyhose legs
70%
I Can't Control It
Woke up, laying on my left side, to the sound of Marissa making quiet whimpering noises. I knew it was her because she had an unmistakable “little girl” voice that she moaned with while we had sex. Or while she masturbated. Just whenever she had pleasure.. down there... My back was to ... Read full Story
shemale lover 2012-09-18 6,839 anal sex Big Cock cum oral sex
100%
Jesse's Dream Job - The First Day
Jesse didn't want to be late on his first day so he got to the office about 20 minutes early. He was looking sharp in a black suit pinstriped in light blue. The shirt matched the pinstripes and the tie was made up of reds, purples and a little of the light blue to bring it all together. Jesse had ne... Read full Story
shemale lover 2012-12-20 9,529 hardcore Cumshot Shemale Fucks Guy ass fucking handjob
75%
A Shemale Vacation Part 3
At the French border, it was discovered that we had no passports. We were taken from the train and into a room for questioning. All four of us, Josh, Olly, Harry and myself, were terrified. Sure, we'd been in a sticky situation before on this trip, sticky particularly for me rather than the others, ... Read full Story
shemale lover 2011-09-05 4,158 anal sucking cum
100%
DÉBUTS INNOCENTS
"Avez-vous pris votre vitamine, ma chère ?" Ellen a appelé de la salle de bain. Je me frottai le sommeil des yeux et ramassai le flacon de pilule, roulant un gros comprimé dans ma paume. "Ma pilule de cheval ? Je le fais maintenant." "Avez-vous déjà remarqué une différence ?" "Non. Les vitamines ... Read full Story
Femboy 2021 2023-01-26 1,048 Stockings Teen (18+) Crossdresser Cumshot Fetish Blowjob Big Cock Lingerie Shemale and Girl domination Guy Fucks Shemale
100%
An Empty Hole
"its not working out im breaking up w/ u" The last text he got from his girlfriend that Friday was heavy. It sank, like the hull of a battered battleship, drifting towards the bottomless, cold abyss of his heart. The teen took it hard, harder than most. His emotions flared, rapidly resp... Read full Story
shemale lover 2012-11-13 5,417 tranny Cumshot oral
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 30,295 Teen (18+)
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 4,273 Group Sex Big Tits Cumshot Bareback Fetish Blowjob Big Cock Asian Ladyboy Sex Toys Mature cum in mouth shemale + shemale
50%
A LA DÉCOUVERTE DE L'AMBRE ⚧️
J'ai toujours aimé la lingerie féminine. De regarder des catalogues à voir des copines le porter, j'ai adoré le look et la sensation de la lingerie sexy et soyeuse, mais pour moi, cela a toujours été plus profond. À 18 ans, j'ai essayé ma première paire de culottes, oh mon Dieu, c'était merveilleux ... Read full Story
Femboy 2021 2023-02-17 988 Stockings Crossdresser Cumshot Bareback Fetish Big Cock Lingerie Shemale and Girl domination Guy Fucks Shemale Sex Toys
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 4,839 Crossdresser Cumshot Creampie Fetish domination Guy Fucks Shemale
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 13,798 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 2023-02-17 889 Teen (18+) Crossdresser Shemale Fucks Guy Fetish Blowjob Big Cock Shemale and Girl domination cum in mouth
50%
I kneel in front of Dominatrix Persephone
Fan Mail. I kneel in front of Persephone.. She looks amazing in Her latex catsuit, but there is something else eye catching. Chance, Persephone huge hó rse c... It looks intimidating in picture, but just think how it must look when it is right in front of your face!! Holding it in my sissy hands, i... Read full Story
Dominatrix Persephone 2024-06-18 2,481 anal Stockings Cumshot Shemale Fucks Guy Fetish Big Cock redhead domination Interracial Mature Homemade sissy femboy teen (18+)
100%
A Perfect Pandemic: A Transsexual Transition in a Troubled Time
A Perfect Pandemic A Transsexual Transition in a Troubled Time A Novelette by Alexandra Rios Text Copyright Reserved © August, 2021 Dedication Transgender Day of Remembrance is a solemn occasion. I am offering “A Perfect Pandemic” for free as an antidote to the fear, phobia, discrimination, d... Read full Story
the greatest liar 2021-11-16 5,068 Teen (18+) Crossdresser Group Sex Big Tits Bareback Creampie Big Cock gangbang domination Guy Fucks Shemale Interracial double anal webcams
60%
A Ski Bunny is Born Chapter 3
Kim and I are thrilled that so many people are enjoying reading about our adventures. We have received so many really nice e-mails from lots of lovely people, its good to know you girls and guys out there are enjoying them! We had promised each other a trip to Europe but hadn't really made any fi... Read full Story
shemale lover 2012-06-22 8,220 Cumshot Sex Toys 69 position handjob
100%
Darling Nikki
Chapter 1 - The Setup "I'm going to catch him!" Samantha thought to herself as she looked at her disheveled panty drawer. She now had proof that her roommate, Nick, had been wearing her clothes, but had to catch him in the act. She did a search online for ideas on how to catch him. She ... Read full Story
shemale lover 2012-07-15 7,338 Cumshot oral sex Latex sissy
83%
My Life as a Shemale Part9
It is now almost a year later and I am a year older, my hormone treatment has been going on for some time. The short version of the past few months seems some of the most poignant in my life but not conducive to this readership. My skin was getting softer, my body hair lighter and most important to ... Read full Story
shemale lover 2015-02-27 3,522 tranny Cumshot Masturbation anus
100%
Chapter 1 - My Cuckold Life
I have a small penis. In fact, I have a very small penis. I’ve been in permanent chastity for over 7 years. My wife and her lovers call it my “caged clitty” and that’s about right as far as it being a useful penis. I suppose I should start at the beginning. I’ve never been much of a man. I’m ... Read full Story
Sissy Annabelle 2022-08-23 6,058 Crossdresser Interracial sissy chastity Cuckold Husband
50%
SOUS LA DIRECTION DE MAMAN
Jaime n'avait jamais eu beaucoup de chance avec les filles du lycée. C'était venu et reparti, et maintenant il en profitait un l'été dernier avant de partir à l'université avec sa virginité intacte. Ce n'était pas vraiment sa faute, il n'était pas un crétin ou un crétin, c'est juste que la vie et la... Read full Story
Femboy 2021 2023-01-26 1,422 Stockings Teen (18+) Crossdresser Cumshot Fetish Blowjob Big Cock Lingerie Shemale and Girl domination Guy Fucks Shemale Sex Toys cum in mouth
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 2024-07-04 399 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%
Changling
‘My goodness!’ she exclaimed, ‘It appears that you've had an accident, youngster. You'd better come home with me so that we can make you presentable. It's quite safe, 'cos I live in the big house in the woods on the other side of the hill behind the toilets. Come along, now,’... Read full Story
shemale lover 2012-02-02 8,656 shemales Masturbation Big Cock