In college I had roommates who would bring girlfriends over and yes, I was aware of them copulating. I just plugged my ears or turned up my music really loud.
im sure i have but I've never heard it. i would interrupt and tell them to be quiet. if I'm not having sex why would i want to hear someone else having sex
Yes in any collection of people living in a house there will be a certain amount of sexual activity. Whether roommates or a group home. When I was very young I lived with a band and there were perhaps almost 20 other living their as well as visitors so there was often quite a lot going on most of the time. In our home that has been sometimes true of my stepdaughters and their boyfriends or sometimes with invited guests.