Let me preface this by stating that this was back in the 80s. There was no sex streaming 24/7 on your computer. I’d only seen porn once- a fuzzy VHS tape of a copy of a copy of a cheesy Ginger Lynn film. My point being, I did not have the access to “spank material” such as we have today.
So, when I was a teen up until I was 21 and moved away to college I would occasionally hear my mom and her boyfriend getting it on late at night. Their bedroom shared a wall with my room and I would instantly get hard and jack off to the sounds of them fucking. They were both very vocal. Lots of moaning and “oh fuck. I’m cumming”. Kinda inconsiderate honestly, and you’re probably thinking, gross! But my hormones did not care.
I moved away to college when I was 21. Still a virgin. My two roommates at the time both were in relationships, and sure enough, I would listen to them having sex with their partners. When I finally started having a sex life I was somewhat disappointed my girlfriends weren’t as vocal as I’d hoped. But the sex was great so I moved on. Over the years I’d still keep an ear open and occasionally I’d hear my neighbors having sex.