She keeps squirming, harder and faster...

...seemingly unaware of what she's doing to you, or maybe even more motivated to escape from the feel of your shaft growing and pressing, sliding and rubbing between her thigh and the line of her panties as they're shoved aside...

"Fuck," you gasp, "Sis, wait... wait you're...!"

Her smooth, creamy thighs feel so good around your hard, slippery shaft, and you suddenly realize you can smell her, a scent you've known ever since you were born, but somehow... different now... sweeter...

"Amanda," you grunt with growing panic as you feel your round, sensitive head, still slick with your cum, pressing against something... warm... and soft... "D-don't move. Seriously... I... this body is... f-fuck..." Oh god, this is so wrong, it's Amanda, why does her body feel so good...

Her breath tickles the top of your hand as she breathes hard and fast through her nose, twisting and jerking to try and unseat you, even undulating from head to feet like she's on the dance floor doing the worm, nearly bucking you off...

"Amanda!" you gasp, eyes rolling up as her hips slam back down, and yours with them, her soft, round ass pressing into your waist as your cock presses up. "Don't--!"

She does it again, and this time your cockhead doesn't just press between her legs.

It sinks between them.

Ooh... fuuuck...