Hi, first time poster here. I have read a number of posts in this subreddit recently where someone is on the phone while having some sort of sex, and these reminded me of my own story from my school days. So I hope you are willing to suffer through one more such story.
It was my junior year at college. I was on my way to obtaining an engineering degree, and had made friends with several other of my fellow students in the program. We all kept bumping into each other in classes and at the Student Center, and about six of us started to hang out together regularly. There were four guys (me, Jim, Ken and Monte), and two girls (Sandy and Shannon). Ken and I shared an apartment very close to the campus, but the others commuted, and because of this our apartment became a regular place to hang out between classes. People would come and go, study, watch TV, make something to eat, take a nap, etc.