You stay silent.

The trance still sits heavy behind your eyes—smaller, softer, swallow—and you simply watch. Your dad’s tongue works carefully across your mom’s skin, gathering every streak of cum he put on her. He cleans her cheek, the corner of her mouth, the side of her neck, then the soft upper curves of her breasts where her blouse has been tugged open. She stands still and lets him finish, breathing unevenly, hands resting on his shoulders.

When the last visible drop is gone he straightens.

His cock is still half-hard, shiny from the earlier orgasm. He looks at the phone still playing the hypnosis video, then at you, then at your mom.

“I need to shrink,” he says, voice rough and certain, as if the video’s commands have taken root in him the same way they did in you. “Right now.”

He turns to the bathtub and twists the cold tap all the way open. Water thunders into the tub. Without another word he strips completely—shirt, jeans, underwear—leaving his thick cock and heavy balls fully exposed in the bright bathroom light. He steps out into the hallway naked and heads downstairs.

You hear the thermostat beep as he changes it. A moment later the central air kicks on harder than usual. Then cabinet doors open and close in the kitchen. He returns carrying a large bowl of ice cubes and two gel ice packs, still completely naked, cock swaying with each step. He dumps the entire bowl of ice into the filling tub and drops the ice packs in after it. The water is already turning cloudy and frigid.

He looks at both of you.

“Ice bath. For shrinkage.” His eyes settle on you first, then your mom. “The video’s right. We need to get smaller. Both of us. You’re joining me.” He shifts his gaze fully to your mom. “You too. Get in.”

The tub is nearly full of ice water. The bathroom is growing colder by the second as the house air-conditioning drives the temperature toward the 64 degrees he just set. Your dad stands there naked, waiting, the hypnosis video still murmuring from the phone about becoming smaller and softer. Your own cock is still soft inside your boxers from the earlier orgasm and the lingering trance. Your mom hasn’t spoken since he started licking her clean.

The invitation hangs in the cold air.

What do you do?

Strip down without argument and step into the ice bath with your dad, accepting the shrinkage he declared, and wait to see whether your mom follows.

Hesitate at the edge of the tub, the cold already radiating from the water, and look to your mom for her reaction before deciding.

Stay clothed and try to speak through the trance—ask why he’s doing this or whether the video has fully taken him over—while the ice water waits.