Vicky's mom Betty and her boyfriend Sid announce their engagement and upcoming wedding in St. Martin and invite the entire family to join them. But when Sid goes too far with a stripper, Dave wonders whether or not to tell Betty and risk losing the free trip. Meanwhile, Kenny goes on a date with an ex-boyfriend of Hillary's, so Dave has an awkward conversation with him about gay safe-sex, while Hillary worries she may have a knack for turning men gay.