I have two movies I saw when I was young. I only remember parts of both.

1: Teenage good girl turns bad.
Scenes I remember: looking in mirror one night and her reflection undoes top of her nightgown. Next morning she’s dressed all 80s punk rock sexy and goes to school. She seduces football player and invites him into the basement where he finds her on her dad’s village model only wearing his varsity jacket but when he tries to approach her he gets sucked down into the drainage grate.

2: Nicholas Cage is seduced by a 13/14 yr old
Scene I remember: Guy has girl laying in odd position on living room couch with hers sweater open and her breasts exposed. Adult female is upstairs showering. Oddly remember camera focusing on bathroom door knob. Guy changes his mind because he knows it’s wrong and girl is confused and asks what’s wrong with her. He says nothing is wrong with her but with him, tells her to cover up and tell nobody.

If anyone knows what movies these are from, answers are appreciated.
Thanks in advance