You Cum anyway

"Jake! uh, uh, its..." you stammer trying to come up with an excuse.

"45 seconds remain" you hear from your phone in an automated voice.

"45 seconds? for what, Lily?" Jake asks

"for... me to have an orgasm" you say, blushing. "Its for a new app."

"sounds kinda sketchy, sis, not gonna lie."

"30 Seconds remain"

hearing that, you quickly start fingering yourself.

"ugh, gross, don't do that in front of me." Jake says as he turns around.

You try and think of the quickest way to orgasm, thinking fast, you remember how much of a turn on it was in the story when she was being watched, so...

"Jake, please, watch me. watch your naked slut sister finger fuck herself right in front of you. pleaassse!" you beg.

He slowly turns around and locks eyes with you before letting his eyes roam over your body. Watching him look down to your breasts, you speed up your fingering. then right as he stares directly at your soaking wet pussy.

"Im cumming! Jake, Im cumming!" you moan as your knees buckle and you collapse in a body shaking orgasm.

*ba-ding* "Bonus challenge completed, plus $2000" you both hear from your phone.

jake looks from your phone to you.

"I see what this is about, that's alot of money you got there." he says

Suddenly

"Bonus Challenge 2, get a man to cum on you within 5 minutes. Penalty 'Cum Funnel'"

"What the fuck is a cum funnel" Jake wonders aloud.

"Jake, cum on me, now!" You demand.