I was in a sorority in college that had 3-4 social events a semester where you could invite a date. During my junior year, we had semi-formal coming up in two weeks and I didn't have a date, so I ended up inviting a guy I knew through mutual friends who I thought was pretty nice and funny. It was customary at my university for fraternities/sororities to "pregame" their date parties because members were limited in the amount of drinks they can buy and there's zero tolerance for drinking underaged at the venues. So my friends and I had the pregame at our house and at one point a few of our dates were in my room because our house was crowded, so my date knew which room was mine (makes sense later). Everything was fun and going well, except I drank to much at the pregame and don't remember much from the date party. I didn't drink to the point of getting sick, but my (extremely awesome) friends realized I probably should leave the event soon after getting there so I didn't get in trouble, and two of them took me back to our house and put me in bed, then went back to the date party themselves(~9:30 pm). Flash forward, it's 3 am and I wake up from my drunken slumber to my date on top of me, beginning to have sex with me - I was so confused but once I got my bearings i was able to push him off and stop him and I went back to sleep. At this point I assumed I had blacked out and he had come back with me - I went back to sleep but the next morning the minute i heard my roommates door open I went to talk to her in her room to ask what had happened the night before and apologize for getting so drunk. When we are talking about what happened, she mentions just her and my other friend left the event to take me home (no mention of my date). Obviously, i’m starting to get weirded out because he’s in my bed at that moment and no one knows how he got there. I asked her if she knows how he got back here and into my room and she has no idea. They left him at the date party because he knew other people there/wanted to stay. She said she even checked on me when they got back after the event ended and she went to sleep and I was fine in my bed, alone. So i'm super confused at this point, and mad at myself for getting so drunk that I couldn't remember what happened. I went back in my room and woke up my date and asked him what happened and with no hesitation in his voice, he tells me that after going downtown after the date party, he didn't want to get an uber back to his place so he walked to my house (it was right next to our downtown area), SCALED THE FENCE in our back yard so he could get in, and made his way up to my room where I was sleeping and jumped in my bed/tried to have sex with me while I was asleep...... I think because he spoke about it so casually and because I knew him, I wasn't as freaked out in that moment as I was in the following days and am now. The guy actually ended up apologizing to me about it via text and over the phone about a week after it occurred which helped, but it still creeps me out.