FWB [M] and my roommate [F] and her bf

I’m not currently dating anyone, and since the pandemic, meeting new people and hooking up has basically been off the table. But I do have a friend I’ve known for a few years that I’ve hooked up with in the past, that since March, we’ve been able to help each other out sexually.

I invited him over this last weekend knowing that my roommate would be staying over at her boyfriend’s place. So he came over and we had dinner and watched a movie, started making out and touching each other about half way through the movie and then took things into my bedroom. We had some pretty amazing sex (though that’s not the point of this story).

Around 10:00 PM, I hear my roommate and her boyfriend coming in and making a bit of noise. They sounded kind of tipsy. It woke me up, and I really thought nothing of it.

I’d mentioned before having paper thin walls and being able to hear everything that they do in their room before on a post. Well, around midnight or so, I’m woken up again to the sounds of them having sex. I’d talked to my FWB about this before and told him that it turned me on, and how often I could hear them.