You made the mistake of making a quip when she complained about her bra being uncomfortable during your workout together.
"Oh really? I bet you wouldn't survive a day in one of my bras, not with my tits." She says with a glare
"you wanna bet?" You reply, thinking nothing of it.
"Sure" she smiles a malicious grin down at you before, in an instant you find yourself shrunk, dangling from her pinched fingers "If I win you're nothing but a sweat stain on my bra, and if you win I might let you go."
You beg and plead as she lifts you to her chest
"What? you thought I'd make you wear a bra? No, I said In my bra with my tits."
With that she slips a finger under the cup of her bra, pulling it away with a wet sticky sound, a cloud of musk swirls up from your hot prison to be, making you cough with its acrid heat.
she drops you and you tumble before landing with a splat against her skin. it's too slick to get a grip so you slide deeper until you cross the arc of her breast and fall once more, sliding until you find yourself wedged between the bottom of her breast and the bra's sweat soaked cup.
"Really? right under there, huh? your funeral." she says with a shrug that only serves to bounce you deeper under her tit.
without waiting for a reply she lets her bra snap back into place and suddenly your world becomes nothing but a furnace of musk stinging your lungs, sweat burning your eyes, and the crushing weight of your friend's chest.
A few moments later you hear her voice through her chest more than anything else "Get ready" she teases "break time is over"
she stands up and every subtle movement is an exponential increase in the already titanic weight on your tiny body.
After a few steps of walking she breaks into a jog, her bounding steps causing her chest to bounce, her breasts slapping down against her with each stride, but this was too much for you and the magnified impact splatters you into a sweaty mess on the first or second stride. but she doesn't notice, true to her words you were absorbed into her bra as just another sweat stain that she promptly forgot about.