"It's so cozy in here. I just love it." You say.
He gives you a squeeze. "Well if you like it so much, maybe I won't digest you. I'll just keep eating you whenever I feel like it. You get too be inside and while and I'll let you out. does that sound good?"
"being your belly slave sounds great." You reply.
He rubs you and walks home after school. He gets to his room. He lets you out on his bed. "Well since you're my belly slave, you will probably be in my home a bit as well."
you nod happily, excited to be in this position.