A friend of mine asked if I would have a t******** with him and his girlfriend. His girlfriend is hit so of course the answer was yes. Before we got into it we got pretty drunk to make it less uncomfortable. In the middle of going at it she said she wanted to be dp’d. My friend got on bottom, she got on top and I put lube on my d*** and got ready to take her from behind. This proved to be much more difficult position in real life than it looks. I couldn’t really see what I was doing so I just positioned myself and pushed in. Turns out I aimed too low and ended up pushing my d*** in her p**** alongside my friend. She screamed but then told us not to move, after a minute or two she told us to f*** her slow. We ended up sharing her p**** until we both came. The next morning was extremely awkward as none of us really wanted to acknowledge what happened. I ended up leaving pretty soon after we woke up and don’t know how normal things will be with my buddy now.