I wish it happened.

I've always been a premature ejaculator. I shared my cuckold fantasy with my teen girlfriend J. At my request she would tell me fictional stories. Sometimes she would slip in details of things she knew she'd never get from me. "He fucked me against the wall for so long. I kept yelling- Don't stop fucking me".

I would come very very quickly. It wasn't good for my PE, as every time we'd fuck I would know I couldn't give her proper sex. I know she wanted and I'd instantly think of her knowing nearly anyone who she'd like to get naked with could easily perform better than me. Anyone. I'd think of this and cum very quickly into the condom. During her "stories" she sometimes told me how she saw his used condom next to mine and it made mine look "cute".

It didn't help that she was beautiful. Naturally thin with very perky just more than a handful boobs.

She admitted to earlier having the hots for our mate K. He was my mate before I met J. He had a way with girls. He fucked so many and of different ages and single status. I accidentally saw just the base of his dick once when we were younger, like 14. He was changing shorts in front of me and it nearly popped out. When I saw the base of his dick I got that sick jealousy feeling that I was just a boy and why would any girl be happy to play with my dick compared to K's.

K wasn't a good mate to me. It was just 3 of us 14-15 year olds up until we were 17 when I met J. Kev was the bad boy and I was very good and polite. Girls loved his bad boy attitude. I couldn't help how satisfying it would be for them to see a his big dick, how well it would complete the picture for them.

K made no attempt to hide how hot he knew J was. He would blatantly stare at her body at every given chance and a sly smile would come over his face. He wouldn't look at me but he would know I was looking at him. If he'd have known I was a jealous PE boy, he would have done more to fuck J.

Our extended group of friends went on a beach holiday. J was reading a teen girl magazine when she blurted out "Jesus!".
"What?" I asked
"It says here average penis length is 5 and a half!"

It was a very bad few seconds for me because 3 of our friends heard it. And J's tone told them she was surprised because mine was definitely not 5 and a half inches.

She tried to cover it up for my pride but it was useless.

She talked about penis size that night as I was coming back from the shower. All my mates were saying "be quite J" she was ******** and had a look in her eye that suggested she wanted to know.

What we did know is that K had a big dick. That he fucked lots of girls and we knew his stamina was such that girls kept going back to fuck him and fuck him.

Now that I'm older my fantasy is of K fucking J. Of her seeing his big dick for the first time and thinking "My boyfriend's cuckold fantasy is true!" And then "My boyfriend's cuckold fantasy is true and this will be great and I win because K's going to put his larger and better penis in me" and K doing all the things I fantasised about her doing with someone.

And now that I'm older I masterbate over them talking about me. K not considering my emotions at all while fucking her better. J feeling bad but fucking K anyway. K asking Qs...

"can I put it in you?"

"YES PLEASE(constantly moaning)"

"please what"

"Please put your big big dick in me"

"What about BF?"

"You are SOO much better than him and my pussy is sooo much happier with you!" "he would have cum already!" "Please K... Please Fuck me...."

I fantasise about her wearing obscene lingerie for him and not me.

I fantasise about going on car trips with all our mates and somehow she manages to ride in his nice car.

I fantasise about her telling me after I've been a jealous bitch. I fantasise about been so jealous and crazy because she says angrily" he is a man of a lover and you... you know how pathetic you are... you cum before I get excited Andy he fucks me until I cum and cum! His dick is much bigger and much better than yours and my pussy is Ks!"

I then fantasise about K hearing me yell back and with tears in my eyes try to strike J. And then I fantasise about K easily overpowering me and bashing me while J looks on knowing K is beating me too much. And I fantasise about K grabbing J and making out with her.... She removes her bottom lingerie while they're both standing over me. They leave me on the ground. He fucks her all night while I hear her giggling.

I wish I could go back in time and let J fuck K...

I know she knows he could fuck her extremely well