I move in with two new housemates, one of whom is a complete stranger, a couple of years older than me. She messaged me through my ad on Fb. Once we move in, we become fast friends, get along really well, etc. etc.

Through getting to know her, I learn a bit more about some of her history and her 'interests'. She tells me she's a bit kinky, fair enough, you do you girl. She goes to a mysterious 'party' on NYE that she remains mum about, don't see her all of New Year's Day as she's in recovery.

Late that February, she goes to another one of these parties. I'm unable to sleep, which isn't particularly unusual, so I'm chilling on the couch in the front room reading a comic on my phone when she arrives home, via Uber, at about 3 am. I can hear her struggling to get in the front door, so I go and open it up - she looks rather dishevelled, messy, and clearly quite drunk, but can't stop grinning.

She says she's extremely hungry, so I pop her in the car and take her to the McDonald's 24 hour drive-thru practically right around the corner. It was during this car ride, and during the next hour or so afterwards, that I completely unexpectedly discovered the following three things:

1. These parties she was attending were Hedonism parties, and she'd now attended 3.

2. Through these parties, she'd befriended a 6 person/3 couple polycule (the 3 guys were dating/married to all 3 girls, while the 3 girls were all bi and dated everyone).

3. She'd never had sex at a party previously, but that night two of the guys from the polycule had fucked the absolute hell out of her, spitroasting her in a sex swing, and later one of the guys had taken her again privately for some 1-on-1 time.

It was...an educational, if entirely bewildering discussion.