Wasn't There a Sister in This Story?

How you manage to stagger back towards party is beyond you, the ramifications of having unleashed a sexually reawakened Lady Gwendolyn still swirling through your mind. This is all what you'd planned though, isn't it? You last saw your aunt stalking down the hallway towards Lord Gaspar's chambers wearing nothing but a sleeping gown, exciting underwear and the predatory focus of a lioness who's about to fuck the shit out of a water buffalo. With any luck, he's still holding a shine for her. And doesn't notice that she dripped a trail of your cum all the way to his door.

Oh right. That's where the plan went off the rails a touch. Well, you reassure yourself as you adjust your mask and re-enter the banquet hall, even the most masterful of plans is bound to have a couple snags. You shouldn't beat yourself up over one little aunt-fucking. This is still an A+ plan, and at least a B+ execution. Wait, what's different here? You set aside your self-congratulations for a moment, having sensed a change in the tenor of the party. Oh. It seems that with both you and your Aunt otherwise occupied, no one had been around to keep Ginny company. And judging by the half dozen embarrassed maids trying to steady her in her seat, she's gotten roaringly drunk in your absence.

So, maybe let's call it a C+ execution.

The maids have just managed to prop your sister up in her chair when she spots your approach, the princess calling out to you in **** delight. "Candyland!" She slurs loopily, "did y'know s'a party tonight?! I didn't think y'were coming!" She starts to heave herself up to her feet at that, one of the maids gasping as they notice her dress has caught on the edge of the table. Ginny continues on unabated, and with a long, almost comically loud ripping nose her rather snug gown is torn all the way from her navel to her lower chest. She stare down wide-eyed as the bottoms of her heavy breasts happily expand to fill the new space, the party dead silent as the Princess Ginny flashes the entire court enough underboob for an entire highschool cheerleading squad with enough left over for the JV girls to burst their sports bras too. Ginny turns her big eyes up to you, and for a long moment everything is terribly quiet.

Then, she bursts into a fit of hiccuping giggles and the tension is broken, Issa quickly taking Ginny by the arm and herding her over to you as the party starts up in good humor again. "Oh, Sir Sexbomb, I'm afraid the princess has had a touch too much excitement for the evening!" Goddammit Issa, you don't have to wink conspiratorially twelve times. "Could you help me bring her to her room?"

Ginny blinks as Issa gives you the old wink-wink-nudge-nudge, the princess smiling dizzily as she notices she's been brought up to you. "Oh, r'you gonna 'scort me? Yer such a gennelman...." For some reason you feel like protesting, but that impulse dies in your throat as Ginny melts against you, shakily slipping her arm through yours as her half-exposed breasts smoosh deliciously against you. Well fuck, why not?

As you and Issa carefully shepherd the stumbling princess back towards her room, you can't help but notice that she's locked an unmistakably smoky gaze on you. Are you actually starting to blush? You've never seen Ginny like this; she's looking you up and down with what can't be taken as anything besides a look of sultry approval. You've been nervous around Ginny sure, but this is totally different. You've gotten used to the embarrassed, unspoken and almost unaware flirtation the two of you have shared up until this point, but with Ginny actively and unabashedly looking at you as a sexual being? It just puts an exclamation point on the fact that this is the most beautiful woman who's ever lived, and for right now you are appropriately intimidated by that fact.

"So Candyland..." She drawls, tooling a finger across your chest. "I heard a rumor 'bout you..." She motions for you to lean your head down, and when you do she excitedly whispers into your ear. "...a sexy rumor..."

You gulp as you round the corner to Ginny's room, Issa moving ahead to open the door. Uh, Ginny's finger is starting to trail in a dangerously downward direction. Her breath is hot and sweet against your face as she continues to coo provocative whispers to you. "Issa told me alllll about what a big, strong knight you are....an' I think I know what thaaat meeans~!"

She hiccups, hesitating for a moment before whispering up to you again. "S'about your dick, right?! Lemme see it!"

You try to stammer out a response as Issa throws open the door to Ginny's room and ushers you inside, even as the tipsy princess tries to drunkenly pull your cock out of your pants. She's not making much headway until her handmaiden breezes past the two of you, deftly unfastening your buckle on her way back out the door. Ginny's giggling demands that you expose yourself catch in her chest as she suddenly finds her dainty little hands filled to the brim with your throbbing manhood, which goes from half-mast to furiously erect the moment it gets its first taste of your sister's soft fingers. "Good ni~ight!", Issa sings over her shoulder, and then she firmly shuts the door behind her.

Ginny is overcome by shock for a moment as she absentmindedly envelops your shaft in her warm hands. Her shock is almost immediately overtaken by a different breed of surprise as she takes more actively control of her curious fingers. Whoa, she really fucking knows what she's doing. Actually wait, that's not what's going on here. You and Ginny both seem to slowly realize at the same time that she knows your cock already, her breath quickening as she runs her hands across you with the easy comfort of a master artist reunited with her most trusted tool. Her eyes are wide as you've ever seen them as she thumbs your head with practiced ease, whispering to herself "It's perfect...."

You only have a second of confusion before memories bubble up: Fucking Issa and that dildo she made of your cock. Ginny seems to already know your dick because she already knows your dick. This is so messed up and so awesome. And so messed up. You would ruminate further, but at that moment Ginny attempts to step closer and instead trips, stumbling into you and sending you both tumbling to the door.

The room is spinning when you manage to push yourself up into a seated position, the pillowy softness of Ginny pooling across your lap. Wait a minute, that's not quite right. This feels like...sort of like...oh. Oh fuck. As Ginny stirs, it becomes clear that in falling down on top of you, your deliriously happy dick managed to slip up into the tear in your sister's gown and insert itself snugly between the plush, silken cavern of her cleavage. Ginny seems confused for a moment, rubbing her boobs together as she tries to reorient herself. It takes all of your willpower not to explode then and there as you curl your fingers and toes in ecstasy. You've finally tasted the firm yet pillowy soft flesh that Ginny is inadvertently teasing you with at all times, and once man has tasted ambrosia there's no going back to fucking Arby's. You are officially ruined for life as far as tits that don't belong to your sister go.

Ginny finally places her girlish hands on top of her massive breasts and squishes them down, your purple cockhead emerging from its heavenly prison to twitch indolently in the evening air. She stares down at it for a moment, then turns her big emerald eyes up to you, then shifts them back down to your cock. Then, she slowly turns her gaze back up to yours, sticks out her adorable little tounge, and gives the tip of your dick a tiny lick.

You're not sure exactly how long the orgasm blasts out of you, but there are two contextual clues to consider. One, it went on long enough to utterly drench both you and Ginny's gown with thick, almost steaming hot cum. And two, it lasted at least long enough for the tiring hours and booze to catch up to the princess with a vengeance, because Ginny is now fast asleep. And so here you find yourself, sprawled out on the floor and covered in your own cum with your sister asleep in your lap, your blissful cock still buried deep within her enormous decolletage.

So, let's bump this back up to a B+ for execution.