Another patch

You father seems to be getting a bit too comfortable with the prospect of spending the next 24 hours with his nanobot enhanced cock stretching out your throat. He slowly jerks himself off with the inch or two he can withdraw by pulling your hair to move your entire body up and down his shaft while he reads the instructions more closely. You can't believe he is already trying to decide where to put the next patch before he has delt with the problems caused by the first one.

His eyes light up as something catches his interest.

"Good news, pumpkin!" He says, looking down at you excitedly and making eye contact with your glazed over expression before continuing, "I've got an idea!"

Kevin takes the patch labeled 'CUM SLUT' and slaps it on your neck, still stuffed with his cartoonishly oversized cock. You begin to worry immediately, feeling the pinch of the nanobots entering your bloodstream and getting to work on your throat. You remember what the dealer said about putting it on your ass making it tighter and wonder how making your esophagus tighter could possible help the situation.

Rather than feeling your throat tighten as you expected, you feel your tongue begin to suddenly swell, quickly over filling the small amount of room in your mouth under your father's cock and forcing its way out over your bottom lip. Your already strained jaw stretches even further to make room as your tongue continues to reach far beyond human limits.

"Oh fuck yeah, that's nice," Kevin moans, still jerking himself off with his daughter's head, now even more excited since your freakishly long tongue is in constant contact with his balls. To his credit, your breathing has become slightly easier since most of the new length came from deep in your esophagus and his movement is also easier since the nanobots have sent your saliva glands into overdrive, making you drool profusely; constantly lubricating him with your slobber.

Unfortunately, the vacuum still holds him in place, not that he's actually trying very hard to remove himself right now. He begins slamming your face into his pelvis harder and harder as he works on another orgasm with your head. You juggle his testicles with your giant new tongue in an effort to get him off before he breaks your nose.

Your father responds very positively to this, letting out a groan as he begins pumping another gigantic load directly into your stomach. You feel his balls tightening on your tongue as pulse after pulse of life saving medicine shoots into your belly to join all the previous loads from today that you're still digesting.

"Wow, that was great, sweetie!" Kevin exclaims, still milking out the last of his cum by slowly yanking your hair. He pulls away one last time, now trying to remove himself from your throat, but the vacuum still holds him inside you more than halfway.

He gives up and hilts himself again, trying to come up with another plan as you cradle his balls on your gigantic tongue, still cascading a waterfall of spit from your over active saliva glands. He notices that every time he shoots a load into your stomach, he can pull himself out a small amount more than before. He begins to think that if he can just fill you up even more he might be able to pull himself out.

He begins to consider how to fill your belly even faster.