His buddy walks into the room, and the two of them jump up from the couch (facing away from camera, couch back wall to camera) startled, him at the top of the couch, her halfway down it, fixing their attire.

An innocent interpretation is after he gets handsy and massaging her, they both fall asleep on the couch, her head on his lap, and they are indeed just fixing their attire which was wrinkled from sleeping. A less innocent interpretation is as the prior commenter stated, that his buddy walked in on some cross-cultural education.