A stern grandpa takes a young, insolent twink in hand, teaching him the joys of anal submission and the importance of discretion. The twink, now on his knees, feels the grandpa's hard cock pushing into his ass, filling him completely. The grandpa fucks him roughly, using the twink's body for his pleasure, slapping the twink's ass and gripping his hair. The twink, now more respectful, takes the grandpa's load in his mouth, swallowing it all, learning the true value of keeping one's mouth shut.