One night, Hikari (my best friend's girlfriend) came to my house. - He told me that he had a fight with Shoji (his best friend) and would like me to talk to him about it. - The content of the fight was trivial, but as we were drinking and listening to the story...I ended up pushing Hikari down. - The more I thought about how bad it would be if I found out, the more I couldn't control my excitement...before I knew it, we were fucking each other until morning.