Day 5: Crossdressing

Pairing: Papster (PapyrusxGaster)

Tags for this chapter: Crossdressing, fingering, ecto-genitalia, daddy kink, Papyrus in a dress


Gaster just knows his youngest son loves to test him.

Simple things, like bending over in a very unnecessary fashion to pick up imagined dust he spots on the floor. Or eating ice cream in a way that leaves nothing to the imagination.

Or walking around the house in a dress that is entirely too cute on him to be anything but sinful.

Obviously, Papyrus looks cute in anything. It's just a fact. But bright orange fabric with mint green accents that drapes over his frame and ends just short of actually decently covering anything is... definitely among the short list of things that can put Gaster on edge.

He can't help it that Papyrus looks absolutely exquisite like this, a tasteful trim of lace around the neckline gives the barest hint of exposed clavicle, while at the bottom it plays with exposing the edge of his bare pelvis.

Bare.

Because Papyrus isn't wearing anything underneath it.

The realization hits him with the same grace as a speeding train would, taking his proverbial breath away with the mere implications. The great Papyrus doesn't do anything by halves. There is no way come hell or high water that this suspicious lack of undergarments is anything approximating a coincidence.

Nor is the way Papyrus drapes on the couch right now, just close enough to be visible in Gaster's peripheral vision, but in such a way that the royal scientist would have to actually turn his head to enjoy the view. His son is half sitting, half laying across the seat, legs crossed demurely, giving the absolute impression of complete innocence.

Gaster knows better.

Especially as Papyrus sighs loudly, uncrossing his legs for the shortest of moments and Gaster gets a good look at the eager, already fully formed pussy waiting for him under that dress hem.

Papyrus loves to test him.

Gaster abandons his chair in favor of taking a seat next to his son, one arm draped over the back of the couch while another rests on Papyrus's femur and the much younger skeleton leans against him eagerly, head resting on the scientist's shoulder.

"I'm bored, daddy." He murmurs into the crook of his father's neck and Gaster almost comes right then and there. This shouldn't be legal.

His hand slides upwards, tips of his fingers barely grazing against the bone and when he finally reaches his prize he can feel how wet Papyrus is already. One finger slides in easily, and Papyrus gasps softly, shifting in his seat.

Gaster works him slowly at first, moving the digit in and out repeatedly, making sure Papyrus opens up nicely for him. His son is positively drenching already, and the bright fluids coat Gaster's finger as he works them inside that beautiful pussy.

By the time he adds another one Papyrus is moaning continuously, panting against his father's neck in quick spurts as Gaster fucks him with his fingers.

"D-daddy~ ah!" His plea gets undercut as Gaster uses a thumb to rub across his son's clit roughly, pressing down on it before letting up the pressure a bit, repeating the process several times.

Papyrus is shaking, one hand grasping his father's wrist but not doing anything to stop him as he adds a third digit, rubbing Papyrus's inner walls with vigor, relishing the way they clench desperately around them.

"You're such a naughty child." Gaster huffs against the side of his skull, using his thumb again to play with the sensitive nub above his son's opening to really bring home his statement. "Teasing your father like this."

Papyrus gasps again, pushing against his father's fingers to chase the unrelenting pleasure, but Gaster won't let him win that easily, slowing down his ministrations until Papyrus is whining pathetically.

"I'm sorry daddy." He moans, trying to bring his other hand down to finish the work himself but Gaster grabs it before he can, pinning it against his lap while his other fingers remain buried inside his son's eager pussy.

His thumb rubs soft circles against Papyrus's clit now, barely enough to relief the immense pressure he must be feeling by now. "What are you going to do to make it up then, Papyrus?"

"A-anything daddy." Papyrus groans weakly, pinned down against the couch in such a way it's impossible to find any release and Gaster draws out the moment, loving how helpless his youngest son looks against him. Dripping and completely at his disposal.

Papyrus trembles against him, unable to move and at last Gaster decides to have mercy.

"Good boy." He says, thrusting his fingers in and out of Papyrus hard now, thumb coming down to rub his son's clit unrelentingly and Papyrus moans loudly as he is finally allowed to cum, whining when Gaster doesn't stop moving even as he is coming down from his fresh orgasm, teasing his son with just a few more flicks of his fingers.

When he finally pulls out they are dripping wet and Papyrus falls back against the couch, completely spent. Gaster kisses him softly, smiling when his son tries to recuperate but is unable to find the energy.

"Now, about doing anything for me." He says seductively, standing up so his youngest child can see the immense boner tenting his trousers. "I think I already know what I want."


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