Girl takes advantage of her roommate

A young guy is in a bathroom with a girl, and he starts touching her and sucking her nipples. Then we see him with a vacuum cleaner cleaning her, she is lying down, and you can see her panties. Then they are interrupted by a blonde, who calls the girl, and she leaves. Then they are seen again at school until the blonde interrupts them again, this time with a punch. Later she helps him improve his tennis backhand. Finally, they get to the house where he sees her completely naked, and she takes him to take a bath together.