Bapak, a robust man in his prime, catches his nephew, a lithe twink, masturbating in the bathroom. Instead of scolding, he joins him, their eyes locking in the mirror. He whispers, "Let me show you, boy." He guides the nephew's hand to his own throbbing cock, then pushes him to his knees. The nephew takes Bapak's cock into his mouth, eagerly sucking and gagging. Bapak groans, then lifts the nephew onto the sink, spreading his legs. He fingers the nephew's hole, then replaces his fingers with his cock, fucking him roughly until they both cum hard.