Backstory: I’m in the military and I rarely get to visit home, so when I do visit I like to make it a surprise.
A little over 2 years ago I took leave to come home and surprise my parents. I know where they hide the spare key so I can easily let myself in without them knowing. When I pulled up to the house I noticed a lot of cars outside (about 14-16 give or take). One of the cars I recognized, it was our neighbors’ who we’re really good friends with and I’ve known since I was 16. I figured they must’ve been having a small party and that that would make the surprise even better! I made my way up to the house, got the spare key and let myself inside. No one was downstairs, just a bunch of empty glasses and bottles. No one was out back by the pool or grill. Weird, all these cars outside and no ones home? But then, sitting there in the silence, I began to hear people upstairs. “Why would they be upstairs? It’s just bedrooms up there” I thought to myself. I walked over to the staircase and as I began walking upstairs I could hear them more clearly through the closed door. Moaning, pounding, screaming, easily over a dozen different voices I heard. I just stood there on the stairs in shock. I’m pretty sure most normal people at this point would get disgusted and leave, but I’ve never been so incredibly turned on in my life. I wanted to go upstairs and join them so badly… but obviously that would be pretty weird with my parents there as well. After sitting there for a while and listening with the hardest erection I’ve ever experienced in my life, I eventually convinced myself I need to leave and come back tomorrow. So I went to stay at my brother and sister-in-law’s house (who both knew I was in town already).