Despite how cozy it is, he decides he should take it a bit farther. "I do have her parts right here, might as well use them, right?"
Leaning back as far as he can, he manages to make just enough of a gap to see her lips, and raises his hands as close as he can get. "Let's see here..."
He spread apart her labia, looking at the two holes in front of him. He started to toy with her vaginal opening, causing Izzie to squirm in discomfort. He could feel her legs tighten, and her hands pushed his face forwards, right through the opening he made in her labia. He wasn't in either hole, but his position made it easy to accidentally get into one.
She pushed again, and he could feel the fleshy walls around him as he was pushed into one of them. He couldn't even tell which one; He knew it was damp, and didn't smell that good.
Trying to back out, he quickly realized she was pressing hard on the area he was in, finding that it'd be easier to turn around so he could actually see what he was doing. "Well, guess I gotta go up."
He went in, and felt her grabbing through the diaper. Trying to avoid her hands, he crawled farther in...