Opa, a man of simple pleasures, enjoys rewarding his nieces' good behavior. Today, he's decided to teach them a lesson about the value of their bodies. "Take off your clothes, show me what you've got," he instructs, his voice firm yet gentle. The nieces, 19 and 21, blush but comply, their young, firm bodies now bare. Opa nods, satisfied. "Good girls," he praises, his cock tenting his pants. He pulls it out, a thick, veiny length that makes the nieces gasp. "Now, come here. It's time for your reward." He guides their heads to his cock, teaching them how to lick, suck, and stroke. Once they've mastered that, he has them ride him, their tight pussies clenching as they slide up and down his shaft. He spanks them, their asses turning a delightful shade of pink. "You're such good girls," he groans, filling the first niece with his cum before switching to the second for another round of punishment and reward.