The grip did loosen for a moment, making it seem like he might get away, before suddenly my cheeks clenched and Chris was forced down. It was almost like a hit from a bumpercar, my soft spongey butt flesh bouncing him down, and right into the black hole. My anus clenching shut right after, to see Chris in the humid smelly darkness. I laughed happily as I waved, looking back. "Have fun, oh, and if you rub my walls really really good, I might let you out before the next time I use the can." I laughed happily at this, granted I was totally lying.