Threesome with a young gamer

My cousin has always been one of those rare women that does not correspond to the standard typical of other young girls. It is not very feminine and like to play video games. She has a friend with whom I always play that, according to my suspicions must be the girl. And today I confirmed my doubts. He was playing in the living room, as always. And suddenly they started to fuck. My cousin did oral sex with the other girl. I was masturbating while I watched them. But when I could no longer resist, I left the place where I was. I showed them my cock and I asked them to join me. They wanted to give me a blowjob between the two of them. Then I made sit on a chair and I entered from behind.