I have a bunch of good stories in this category, start with a couple from my current wife.
Ages ago when she was still living in SA, with her first serious boyfriend. He had major jealousy issues, double standard, and a total A-hole.
She told me about three guys he got real jealous about. I'm not sure what the time frame is separating them, and these events, But here's what I know.
First two guys were people. They knew, friends from their extended circle. Third guy was car guy, car drifting enthusiast for better lack of a term to describe him.
Anyways this first boyfriend got super jealous and gave her hell for her being too friendly with these three guys, for instance, he caught her at a gathering in the passenger seat of the drifting car guy that sort of thing. She decided that if he was going to keep accusing her of cheating with these guys then fuck him!
I'll call these guys. Drifter, rugby player, and friend.
She was with the rugby guy, who she said was best looking, best body, took a drive to watch the sunset at the beach. Ended up making out, and after it got dark he took her into to a public restroom, lifted up her dress. I sucked her tits, then spun her around up against the wall. Dress still pushed up, Panties pulled down fucked her like that up against the wall on her tippy toes, was her second cock. First taste of what getting other guys cocks was like.
Drifter car guy, ran into him at some her car hangout spot. There have been previously a big scene when the boyfriend had caught her drifting with the guy in his passenger seat, so when she asked the guy if he'd take her for ride He already knew she was up for it. She said he was aggressive, kind of rough and had the biggest dick between the three guys and her boyfriend.
Car drifter guy took her to whatever their equivalent of lover's Lane was. Had a quick aggressive makeout session in the backseat as he stripped her nude then did whatever he wanted to her, which really turned her on, not because he was skilled but just as a big Fuck you to her boyfriend. The took her home well fucked and sucked out. That was her third and biggest cock to date And pretty much the end of her inhibitions to doing this type of stuff.
Third guy less interesting story, was at someone's house getting it ready for a birthday party, couple of the other people took off to get supplies and food and left her and friend guy to work on getting the house ready. She was flirting with him and asked him if he wanted a quickie, bent over the peoples dining room table and offered herself up. Telling him he had 5 minutes. That was her fourth cock
Not too much other detail I can relate to that all I know.
Other than the fact that still today she likes to bend over and offer her ass up for a quickie and that taking it from behind is her favorite and go to position.
Not her pictured but you get the idea