"This might sound like a really strange request," you begin, chuckling nervously. "But this has been really strange day."
The pikachu looks a little confused, but says, "I said 'whatever you wish,' master, and I meant it."
Alright, it's now or never, you think to yourself. "I...I want you to...eat me..."
The pokemon merely stares at you, and blinks once. "...Master?"
"B-but I don't want to be digested," you immediately stammer, feeling your face go red. "I've just always wondered what it would feel like to be someone's food, what it feels like to be inside another living creature. It's kinda been a weird thing of mine."
The pikachu frowns slightly, appearing stern as he considers your unusual request--but just as you're bracing yourself for an outright refusal, he extends a paw towards you and plucks you from the ground. "If this is what my master truly wants, then I have no choice but to obey," he says, holding you directly in front of his face. "You can stay inside my tummy for as long you want. Just let me know when you want back out."
Saying that, he opens his mouth wide, extending his large pink tongue towards you. This was really happening! He releases you, and you drop on top of the wet tongue with a plop, doing your best to cling to the slippery surface as it draws you into the pokemon mouth.
You sit up just in time to catch a glimpse of the outside from your perch atop the mouse's tongue. It wasn't everyday you got to see the world from inside someone's mouth, surrounded by white teeth and fleshy walls. But as the jaws begin to close, encasing you in darkness, you feel your excitement highen, knowing that you were now locked in tight, utterly helpless and at the predator's mercy. There was only one option left for you, and that was to go down.
The massive tongue shifts uneasily beneath you as the pikachu awaits your command.