The senior's eyes gleam with satisfaction as she watches the girls' transformation. She commands them to turn around, presenting their tight, virgin asses. One by one, she fingers their assholes, making them moan and squirm with a mix of pain and pleasure. She then orders them to bend over, and with a wicked grin, she pulls out a massive dildo. She commands the first girl to spread her ass cheeks, and with a swift thrust, she buries the dildo deep inside her. The girl screams, but the senior just laughs, "That's just the beginning, my little sluts. You'll take every inch of this, and you'll love it."