A young Russian couple likes to have sex in the morning in the kitchen

The half-brother and sister have an English test in a week, and in order to better master the language, the couple decides to speak only in it when negotiating sexual intercourse. But this is stupid only at first glance. In fact, the couple flogs very often and for a long time, so it won’t be any worse with a foreign language. Let’s step-sister have sex in Russian..., says the brother, but purely in English!