Murielle's slave has to hold her couch on his chest while she sits down on top and reads the manual of her new car. But after a while she gets a little bored and decides to have some fun - of torturing her slave! She gets up from the couch and jumps right back on. As she lands on it with the full weight of her body the slave just moans in pain but she doesn't care and keeps going. In the end she's taking a little care of her fingernails - while she's still crushing the slave underneath the couch.
