A family boating on vacation near a Virginia barrier island on the 4th of July are the victims of an unusual biological attack, with very deviant consequences. The last third of the story is resolution; all the sex is in the first two thirds. The coercion is biological, and reluctance or regret is brief.
MILF teacher and family moves to new neighborhood. The MILF is jealous of the MILF next door. They get into a cat fight, with son and friend watching. The HMO steps in.