Years ago i had a FWB who choked pretty good, felt bad about laughing but even she admitted it was pretty funny.
We'd had an on again off again affair for a few years and although she gave phenomenal blowjobs she'd never let me finish she claimed to dislike cum which was too bad but whatever. She finally divorced her husband and was getting back into dating all the while we continued sleeping together, she stops by one night all dressed up and looking hot as fuck, i hadn't gotten off in about a week so i was pretty horned up and i figured i'd try getting some action and we start fooling around but she puts on the brakes and says she's not going to fuck me cause she was meeting a date in a bit and she was planning on fucking him and she wasn't about to fuck two guys in one night but we continued making out a bit and i knew how to get her worked up so i pushed it until i had my face buried between her legs and i didnt pull up till she'd cum. We were sitting there catching our breathe when she says she'd feel guilty if she left now without getting me off so she'd blow me but that was it, right away i questioned her dislike of cum and she smirked and explained she'd been on a date a couple weeks before and without warning the guy nutted in her mouth but unlike past experiences it wasn't as bad as she remembered and it actually turned her on. So i sat back and she started to do her thing, now ive always been a heavy cummer and we'd always used condoms so she'd never seen the volume i produce so i figured i'd give her fair warning which she kind of laughed of and started doing her thing and it was amazing especially when she kept going after the point where she'd usually stop, i frantically warned her one last time before having one of the hardest full body orgasms of my life, felt that first burst and heard her choke but she troopered on as it just kept flowing, i had pretty much zero control and even i was shocked by how long i was cumming for, when it finally stopped she came up with watery eyes and a hand over her mouth before gulping it back. her immediate response was a little angry that i'd pretty much choked her out with my cock, but that quickly turned to laughter and amazement. To this day i'm apparently still the biggest loads she's seen, i'm still a little disappointed we went different ways, once she learned to take it her blowjobs would leave me lifeless and she'd swallow it all.