Looking at her friend's beautiful breasts

Kou has a friend with beautiful breasts and a shy way that makes him fall in love. This hot woman goes with him to the beach and playing volleyball ends up giving a wrong serve, which ends up on the boy. He can't take his eyes off the girl's cleavage, which ends up drawing her attention to the point of commenting on the matter. With no way out, the way will be to admit the desire for her and take the opportunity to fuck with this naughty girl.