This happened when we were all 18, none of the three of us are in contact anymore as have just drifted apart naturally over time.

I had only recently just lost my V-card to Jo, we meet and made out quite drunk at a party, exchanged numbers and went from there. Jo was quite chubby, not overly pretty, but had outrageously amazing breasts, and got super horny and loved to fuck. After the party and messaging if became apparent that she was dtf, and I at wanted to lose my virginity, and that was how we started “dating”.
Being my first girlfriend who i had sex with, one night after she made a sexual confession to me, I thought I had to reciprocate. So I ended up telling her about the stuff Cam and I had done.
Cam was my best mate at the time, he also had a PC in his bedroom and internet connection, we would watch porn, which lead to jerking ourselves off, which lead to giving each other handjobs, which lead to trying oral. I found out while I would want too, my gag reflex is far to strong to allow. Cam in the other hand was ok and got somewhat into it. So I told Jo all about this, and at first she was quite put off with it, and we didn’t talk further about it.
A few months later a group of us are drinking at a park, near Cam’s house, I had driven to Cam’s place to leave my car and stay the night, Jo had come along with some of her mates. Cam, Jo, and I were chatting and hanging, when something between Cam and I had a disagreement and got a bit pissed at each other, Jo said something along the lines of “you two should just fuck and get it over with. You’ve basically done everything else” Now I hadn’t told Cam that Jo knew what we had done, so said “What do you mean…?”
“He’s told me about what you two do, you should just fuck” Jo replied
“im not into that” I said, and Cam also protested and got more annoyed.
Im not sure why, but i then got the idea “How about we have sex” I said, Cam looked shocked and Jo a bit surprised, “yeah go on, you two have sex” Jo joked, “no, i mean the three of us” i replied.
Jo wasn’t into the idea but Cam thought that might be ok and into it. I got behind Jo and cupped her breasts, and said into her ear how hot it would be to have two guys give it to her, two dicks to play with, I put a hand between her legs and felt how wet she was, Cam was getting hard seeing this, Jo noticed and said Ok.

We got to Cam’s room, i sat at the head of the bed in the corner of the room, Jo sat in front of me between my legs and Cam sat on the end of the bed, I kissed Jo on her neck and felt up her tits, took her top off to reveal the bralet underneath (it was too hot for much clothing, but her tits were too big for no bra at all). Her nipples were hard as was Cam and I cocks. Cam was rubbing himself over his pants, Jo reached behind me and pulled my dick out and was stroking. She lifted up and took her panties off, sat next to me, put a leg over mine to show off her pussy to Cam, i started to finger her, Cam took his shorts off and stroked his cock. His was about the same length as me, but a bit skinnier.
“Suck my cock” i wispered in her ear, “no” was her reply, “I want to see him suck it”, Cam looked, stood up and bent over and sucked me, Jo moved to watch and started to give him a hand job. After a little bit Cam asked if he could stop, so Jo got on all fours on the bed and took over. “Get a condom” i told Cam, he got one from his beside table, put it on and entered Jo. We spit roasted her for a bit but when she stopped sucking me from the enjoyment of being fucked doggy, i moved to the computer chair in the room and watched for a bit, Cam said he was close and asked if he could cum on her face, Jo said no, just cum! She reached down and fingered herself as Cam fucked her a bit harder and came, he was about to pull out and Jo said “no, wait!” And fingered faster to cum.
She lay back, i got up, pulled her to the edge of the bed and entered her pussy, i started to pound her furiously, Cam got hard again watching fed Jo his cock, as I got close i told her I wanted to cum in her mouth, she leant up a bit, I straddled her chest and put my cock in her mouth and came.

After I had done so I sat on the bed, Cam was still hard and rearing to go, Jo said she was still keen so they fucked again, I just sat back and enjoyed the rest of the show. Again Cam was denied cuming anywhere but in the condom inside Joe, she said that his dick pulsed more when he did and that it felt really good.

We only did this once despite hanging out other times after the threesome, was very much a in the moment and a bit drunk thing, we still did talk about it and remembered it fondly.