No matter how hard you looked or struggled, you couldn't seem to find an exit to her stomach, not that you could move very much at all, with how tight her stomach was.
Looking around as much as you could inside her tight stomach, you could see a faint light coming through her flesh due to how tight her stomach was.
Feeling around, you could feel the milk you had fed her not ten minutes ago, as well as the tight and smily walls, which were gently hugging and churning around you.
Looking up, you would smile and close your eyes, the heat and heartbeat around you slowly forcing your body in a more relaxed state, which would shortly lead to you falling asleep.