The time I fucked and came in my flatmate’s mouth before her Tinder date [MF]

It’s hard to categorise the relationship I have with my flatmate (F24) Alexandra, or Alex for short. It’s either a very open relationship, or the ‘purest’ kind of friends-with-benefits – i.e. one in which we are just best friends who also happen to have lots of passionate sex. We’ve talked about it and we genuinely wouldn’t want our friendship to become romantic as things are perfect as they are now. Although we both have very high sex drives, we’re quite choosy about long-term partners, so we tend to have casual flings with different people. And of course, we always have each other to go back to at the end—or indeed the start—of the night.

Alex and I met each other when we were both going out with different people and the four of us ended up sharing a two-bed flat together. Although we both had partners, Alex and I got on fantastically as we had the same teasing sense of humour and understand each other’s personalities. I won’t deny there was always some sexual tension. Alex is a gorgeous half-Croatian girl with big eyes, brown straight hair, a cute face with defined cheekbones and freckles, a slim build, and perky, medium-sized breasts. Over time, the atmosphere between us became electric and I couldn’t tell if we were flirting or not. I mentally saved moments like the sight of her tight bum through her yoga bottoms or an accidental flash of her nipples as she came back from the shower. For her part, she was always finding opportunities to hang out with me and we teased each other constantly.