This is incredible, you don't even know how to process this. You're... tiny, and you're nestled in the warm, soft cleavage of a cute looking girl you've blown up into a giant. This is... this is so, completely, unbelievably...
...insane in the BEST of ways.
And she's so calm, too! She doesn't seem bothered by the fact that her head is close to bumping into the ceiling, and you crawling around her soft skin doesn't even phase her. You're in love with this power, and while it'd be just as tempting to leap out and go start looking up girls skirts now that none of them can protest against it, you've got ... OTHER ideas in mind.
"Hey, do you mind walking over to the teacher?" you ask Melania, to which the giant glares at you and grumbles. "Why? Shhh! I'm trying to listen!" At that, you just smile. Your arms carefully outstretch, elbows digging into the soft boob beside you as you hold them out, squinting, making them look as if they're held above her. "Oh, no reason," you drawl, "I just think students your size would be safer there."
Before she can question your logic, you give a SHOVE, and the ceiling seems to get ... farther away! Like you pushed it back, almost. But Melanie doesn't. Almost cackling now, you repeat the motion, pushing and pushing, and the ceiling seems to get more and more distant with every shove. Push, push... soon, you can see the walls of the room creeping into your vision. Next, you start to see your classmates, and now you're really tripping! Melanie, aside from her oversized tits, is just as big as her classmates... so what does that make you? Barely a couple inches tall?
Your original plan was to get Melanie nice and tiny and get her to ... I dunno. Get fooled around with by the teacher? You do love the idea, mind. If Melanie was small enough for the teacher to pick her up, though, you'd be well beyond puny, and that's... ...that's kind of... exciting? But is it because you're into it, or because it terrifies you?
Is it both?
Whatever the conclusion, Melanie starts propping up the debris of her desk with some annoyed huffs, your jiggly walls shaking around you. "Sorry lil guy," she mutters apologetically, to which you can't help a laugh. "Oh, no, go ahead! I'm plenty comfortable down here."
With a shrug, she gets to sorting out something usable to sit at, you wonder what else you should do? You're having TONS of fun messing with perspective... the sky's the limit!