About a year ago I met this engaged girl (about 29 or 30 years old) she was a total hottie, nice little brunette ended up with her in my hotel room and after about 10 minutes of kissing I put my hands on her breasts and she backed off a bit, like she felt it was going too far.
Kept kissing and eventually she eased up a bit and next thing we're both completely naked and she says "I'm so not supposed to be doing this", was such a turn on. She then grabbed my dick and pushed it into her pussy, no condom even. We fucked for ages and I ended up on top of her pounding away missionary and was about to blow my load and she says something like "you cant cum in me, i'm engaged" and I just begged her to let me and about 10 seconds later I nutted so deep in her cunt it felt amazing. She made these amazing moaning sounds like she just had the fuck of her life but knew it was wrong. Was incredible. She definitely felt like she regretted it when we she put her clothes back on.
Still see her sometimes, married now, but I reckon one day after a few drinks I can convince her to do it again. She has this bit of slut in her that just never goes away