Derek decides to go check out his older sister belly. It was so perfectly shaped and he always wanted to touch it, but never had the guts to touch her gut. you climbed up her leg and saw her butt in the air so it would be hard to get to her stomach. but at that moment Lucy rolled over in her sleep while you were on top of her knee cap but luckily you hung on and rolled with her body until you landed on the back of her knee . You continued your trek up the giantess and walked across her thigh with ease.

At last you reached her stomach, but had to be careful not to slip inside lucy's bikini bottoms. at least not yet anyway. You carefully crawled across her nether region before reaching her sexy, trim abdomen. You could see the outline of her abs, but it didnt lose it's natural perfect roundness especially on the sides of her tummy. And in the center of her bread basket lied the hole you always wondered what would look like closeup. you climbed until you reached the top of Mount Paunch and looked into the cavern below you. Without a second thought you jumped her navel and landed on the comfy button, that on the other side was digesting Lucy's earlier meal.

You stayed there for abut 20 minutes resting and relaxing to the digestive organs churning her food inside her intestines before being woken by a sudden movement. Out of nowhere a thin white cloth sealed the entrance to her midriff, leaving you trapped inside your big sis's belly button.

(Lucy's POV)

Lucy had awoken from her power nap and was now ready to start her day. She had a lot of things to do, but it wouldnt be that bad. She didnt even notice the slight tickle coming from her abdomen as she put a on a white t-shirt and walked out of her room to start running her errands.