Seriously. Would you watch a Hallmark Christmas movie that segues seamlessly in and out of hard core porn, with everyone remaining in character?
I would.
Kid comes home from the big city to spend Christmas with his widowed dad, only to find out dad has met a new "special angel" and wants to remarry. Dad and his new fiance' desperately want the son's approval. But no amount of tinsel, eggnog, wreaths and caroling seem to work, as son refuses to let his would-be step mom into his heart. Then on Christmas Eve dad gets sick, and it's up to the son and Krystal to decorate the orphanage by themselves. And that leads to an all-night f#&%-fest of epic proportions, ending on all fours in the makeshift manger.
I'm calling it "Deck My Balls" but I think we can do better.