8. Jill Schoelen in The Stepfather (1987)
If nudity could be categorized as completely unnecessary (hint: it never can be), Jill Schoelen's suds-up scene would totally fit the bill. Young Jill drops her robe and steps into the shower, solely it seems, as an excuse to show us how hot she is. Which, of course, is fine by us.
Our glimpse of her is brief, a tease really, but the impression it has made on us still lingers.