Janina Richter (12) pulls off her nightgown and has a conversation with her 13 year old classmate while topless, then sits back in bed partially covered with a blanket waiting for him to join her. This is immediately followed by a scene where it's daytime, Janina is sitting in bed and the boy's teacher, also topless, is on a chair between them.
After waking up, adrian finds that dave has taken a boat to the middle of the lake. He undresses on the shore, then swims to the boat to stay with dave.