Consider setting ground rules.
Think about your relationship with your roommate. Are you close enough that you’d be comfortable sitting down over a beer and setting ground rules for your in-apartment sex adventures? Then do it. Make a schedule for who can have the apartment on what nights, create a heads-up system to let each other know when you’re bringing someone home, talk about whether or not it’s cool to have loud sex, if it’s okay to steal condoms or dental dams from their room, and anything else you think needs going over.
If you’re living with a rando from Craigslist, however, it’s best to wait to have these kinds of conversations until you absolutely have to, Marin says. “You never know, they might not end up having sex too often, or they might always go to their partner’s house,” she says. There’s no need to have those awkward conversations until they’re necessary.
It’s also a good idea to set ground rules for how often your partner or your roommate’s partner can be at the apartment, Marin says. “Respect that you’re living your own lives, but also have shared space,” she says. “Some people don’t care at all if your partner is over every night, but I’ve talked to people who were very protective of their space.” It’s better to ask your roommate how often they’re okay with your partner being at the apartment before it becomes a problem.