Two Russian students have sex in front of a teacher on the couch

Two Russian students come home to a mature teacher. The girls are trying to retake the subject, but it turns out clumsy, because they did not teach at all. The lady asks the bitch to kiss and the girls fulfill the request. The pranks understand that the young lady is a lesbian and therefore they undress in front of her. The teacher carefully looks at depraved chicks. She only watches the same -sex sex from the outside and does not take part in it, although she wants to.