Girl has sex with her boyfriend while her 18 year old sister sleeps

Her mother had asked her to host her sister for one night, the girl had arrived in the city and her apartment was not yet ready for her, so when she told her boyfriend the news, she was afraid he would be angry. In the apartment there was only a bed and no armchair to serve as a bed. The plan was for the three of them to share the large bed. However, she didn't think her boyfriend's need for sex was that great. As soon as they noticed that the young woman was falling asleep. They started kissing and touching each other, trying to be as quiet as possible, they fucked as they had not done for a long time.