Threesome with his girlfriend and half-sister

Today was the day among the women! So I met the sister of my boyfriend to watch movies and eat. A typical evening among women. But my sister-in-law is a yellow-bellied. I wanted to see a horror movie, but he was afraid, and fell asleep in the living room. In the middle of the movie appeared to my boyfriend. It scared me because he came out of nowhere and grabbed me tits. She wanted to fuck, as usual. But his sister was there. He didn’t care, he just wanted to stick his cock. He sat with me on the couch and we fucked next to her. But I was very excited and it was very difficult not to make noise. Eventually we woke up. She was angry because we were fucked next to her, but when he saw the cock of his brother said that we had to share it. Then I did a threesome with her and her brother.