Grandma's clothed breasts are used as a music stand.

A young Charlene and Todd have sex, he's shirtless, she's dressed.

Mr. Levy & Charlene are seen in bed in underwear, implying they had sex.

Euphemisms for sex used.

Charlene and Steffan make out.

It's implied Jane and Dick had sex.

Charlene and Stephen the band member make out, imply they have sex.

Charlene and Steven Troy have sex, he's shirtless, she's in underwear.