I was friends with two sisters and we were heading for a night out and they suggested they invite another fella they knew. So this guy shows up slightly older than me I was 18. So we had our night out and headed back to the sisters house there was no type of relationships involved between the four of us just all friends. The girls eventually went to bed and the guy I had just met and didn’t know much about find our own spots in the lounge room. So it was obvious I had been sleeping for a bit and was woken by a warm sensation on my cock it was dark so I opened my eyes slightly and could make out in the low light that this guy I had just met was sucking my cock. I decided just to lie there and take it and pretend to be asleep but all of a sudden he hopped up and mounted me and shoved my cock in his arse i bucked a bit because not to much lube so I couldn’t pretend I was sleeping anymore so I continued to fuck him it was so hard keeping the noise down so the girls wouldn’t hear. It was interesting sitting around the breakfast table the next morning with those obvious types of questions coming from the girls “ how you guys sleep last night “. So I left to go home and never saw the guy again.