Well we'd been friends for a couple of years, she had been in a relationship with a friend of mine. After they split up, she moved into a house share with my brother and a few other mutual friends who were at university together. Anyway, everybody finishes uni and moves out apart from her, I needed a place to live and there were spare rooms, so I move in.

Over the course of 6 months or so we become close friends, hang out all the time and get drunk and watch films and shit. Then one fateful day her sister, her sisters boyfriend and her ex (my friend) come round for night of drinking and chilling. We all have a good time and everyone apart from me and my housemate fall asleep, I go to the kitchen to get a drink before heading up to bed, she comes in, we make out and head upstairs. We do the dirty, both pretty wasted so not the best performance from either of us, which I think added to the awkwardness later. Cue the morning, hangover, walk downstairs, everybody knows... Lots of awkwardness, remember it's her sister and her ex-girlfriend... Well the next few days we don't really talk, but her and her ex have a series of explosive arguments, eventually I try to talk to her and it's so fucking awkward, she's pretty fucked up over the shit between her and her ex as they had stayed very close frinds and now that seemed over, she also seemed to want more, I just wanted to laugh it off as a drunken one nighter. She starts acting weird, generally being a cunt to me (I don't blame her she'd been through a lot of shit and I played a big part), so I decide to move out.

We never really spoke again apart from a quick hello when we past each other on the street, which is a shame, because as I said we were great friends up until then. She's now pregnant (not mine!) and with a guy, so I guess maybe I turned her, although I don't see my performance that night turning anyone TBH. I spent the next few months sofa surfing as I couldn't find a place I could afford and haven't slept with a housemate since, which is good seeing as I now live with two guys.

TL;DR: I'm a guy that slept with my lesbian housemate, seriously regretted it and possibly turned her.

Edit: wow I didn't realise how long that was, shit got out of hand.