Have you seen the episode of the Simpsons where Homer goes into space, and opens up a bag of potato chips, and has to float around the shuttle eating them all? That's how.
Totally disgusting. Yet very, very funny!
If anybody ever plans on having sex in space they should bring a bunch of plastic wrap along with some very absorbent material to keep liquids from interfering with the sensitive electronic equipment on board. Or make a sleeping bag for 2 kind of like in National Lampoon's Vacation.