Was working in Columbus, IN and was staying a few days at a mid-grade hotel. By this time I was already into listening through walls and, if nothing was going on in the rooms that butted up to mine; I'd look out my peephole if I heard someone walk by to see what they looked like- hoping it was a hot couple and staying in the room next to mine. Mind you, this was the 1990's- no smartphone and the laptop wasn't really for surfing the web, no WiFi, etc. I was a reader and didn't watch TV so when I heard the footsteps I'd see if it was anyone interesting.
This particular night I heard a young couple giggling and laughing as they got off the elevator. They sounded very young- maybe teenagers. I didn't reach the peephole in time but I did see the door diagonally across the hall closing as I looked thru. At this hotel, the carpet pile was rather short and the doors were very high off the threshold, say 3/4 of an inch. Don't know why but when I noticed this, I realized by laying my face flat, I could see under my door and actually into the room across the hall, albeit only a narrow amount. I happened to be looking and saw two pair of feet going into the bathroom in that room. I stayed watching partly because I could clearly hear the couple giggling and splashing in the tub from the acoustics I had down there.
About 5 or so minutes later I saw the two pair of feet prancing out of the bathroom... now I just put my ear down to the bottom of the door without looking as the acoustics were good and there wasn't really much I could see anyway. More giggling by the girl then it got really quiet. About two minutes later I heard some soft moans. I'm guessing he was doing oral on her. Didn't last long and it got really quiet again. Then I heard some soft whispers and another moan but it sounded different. Then I heard her let out what sounded to be a loud painful "ohh"... almost a grunt. I heard her say something that sounded like "easy" and then a couple more grunts but not as loud. Next I heard the bed as they were shifting around or something and then several moderate moans before it went quiet again.
Next sound I heard was the water from the shower and I watched under the door again and eventually saw her feet walk from the bathroom.
I figured it was over and just kinda hung out on the floor reading my book for a while. I heard their door but again missed them as they walked by too quick. I went ahead, got dressed and grabbed my room key and went down to the lobby, hoping to see them. They weren't there. I then went to the vending machines and sure enough, there they were. Her hair was still wet from the shower. She was no more than 18 and he was about the same. She was brown hair, 5'5", bout 110 lbs and a nice rack with no bra. He was fit at about 5'10". Both looked very sheepish and I said "hey" to both. She looked down and away while he looked really nervous and barely made eye contact as he said "hey" back to me. I grabbed a Coke from the machine and went back to my room leaving them there.
Good looking young couple and seeing them after the act was an incredible turn-on for me. I'm almost certain that she had just lost her virginity as I listened. Him too maybe from the sound of things and since the actual act took only a few minutes.
There were no other sounds from the room that night that I could hear. I remember the night my first real girlfriend and I lost our virginity together, it was much like that; in a hotel, she struggled a bit as it was her first time and me fumbling around and blowing my load before she could enjoy much more. Then we slept together still processing that moment without doing it again until a few days later.
Certainly a great memory for me and, even though the act was so short; ridiculously hot to hear what I thought was a girl's first time