A condom!

"Why would we need a condom? " you ask quirking an eyebrow up at her.

"For um... this..." she says sheepishly as she pulls down the front of her pants. Holy shit she is about to flash you her pussy! Finally! It's been months and you have yet to get in her panties. You guess that being shrunken against your will isn't so bad if it gets you some pussy.

The panties come down, and a giant dick springs up and is aimed right at you. "The fuck..." you say staring at the cock protruding from her crotch, dumbfounded. You didn't even realize what she was doing until her hand pushed your from behind and you fell off face first into the opened condom. "Wait, what are you doing??"

She didn't hear you as she slid the condom onto her dick until you were pinned against the tip and the reservoir of the condom.

The world went still as the condom was fully unrolled on her cock. Then without warning you felt her cock start bobbing up and down slowly as she started to stroke. "Stop!" You yelp as you are thrown around in the condom as she pleasures herself. "Plea- eck!" You start spittering and spitting as her cock starts leaking precum on your face.

"So good...fuck...." you hear her sigh as her cock starts to throb.

"Oh please no..." you groan as her stroking gets faster, and the precum starts leaking faster turning a milky color.

"FUCK!" Your girlfriend screams as she collapses on the bed and starts filling the condom with her seed. "Mmmm soooo good..."