What go around comes around for a pair of prank-playing tire salesmen who find themselves placed in secretarial jobs by their put-upon boss.

Boy meets girl; boy falls in love (and had wild, non-stop sex) with girl; boy loses girl… when they discover they are brother and sister! But when he learns that…

The whole gang are back and as close as ever. They decide to get even closer by spending the summer together at a beach house. They decide to hold the…