Wake up your drunk sister so you can fuck her without her remembering

This guy is very clever and knows that if he wakes up his drunk sister soon after falling asleep because of the fart he is carrying, the next morning, surely, he remembers nothing. Then he touches the floor touching her cunt and sticks his cock in his mouth to start cumming his lips. That's when the dog wakes up totally bewildered. The brother tells him to continue sucking and then orders him to get up and get on all fours so that he can stick his tail deep. The next morning, with the hangover, he certainly doesn't remember.