In the classic custom massage scene in the AV film, a lot of lubricating oil is poured on the body, and the two sides produce another kind of stimulation through physical friction. Or you can practice a Kato Eagle's hand, but in real life, after Che's love, you need to spend a lot of time and effort to clean up, really thinking of a terrible scenery. This waterproof bed sheet can completely solve the problem of the aftermath. It should be said that it is a one-time use. If it is not too troublesome, it can be recycled.