"Today's lesson," the mistress begins, "is about sucking dick with your asshole." She pushes her student onto all fours, lubing up her tight, virgin ass before sliding a thick, veiny dildo inside. The student gapes beautifully, revealing her pink insides as the mistress fucks her hard and fast. Next, she demonstrates how to take a cock in both holes simultaneously, using her mouth and ass to pleasure a lucky partner. The student eagerly follows suit, learning the art of dual penetration and the thrill of feeling a hard dick in her stretched ass while sucking another.