Midnight Twister

The clock strikes midnight as I try my best to keep up with my gaming hobby, but it's wildly difficult to care about designing automatic sheep-shearing farms when you've spent your afternoon tit-fucking the biggest bitch on your roster of teachers. I'm hard again just thinking about it despite already nutting once today; I have to hope that means I can last longer when I finally have a moment alone with Alice.

But now it's technically Thursday, and so that moment has come. My mom will be fast asleep by now, and my sister could be asleep, or maybe awake texting or sexting angrily with one of her girlfriends about my good fortune. Before I go over to see about my "daily quota," I check her entry on Custom Girls. With 46 gems in the app, I can appreciate the new options that have appeared for Alice since Tuesday.

Her voice causes arousal in anyone who hears it; User can toggle whether it works on him: 30 gems.
Whenever she sleeps, she has **** wet dreams about the User she always remembers: 5 gems.
Her ears become erogenous zones equivalent to her clitoris: 4 gems.
She constantly generates too much vaginal lubrication: 25 gems.
Arousal Multiplier (200%): 1 gem. (+)
Double her clitoris size: 6 gems.
Double her clitoris sensitivity: 4 gems.
Her vagina becomes extremely narrow but never tears: 30 gems.
Her periods become bloodless weeks where she is three times more sensitive to all arousal: 20 gems.
Her thighs touching each other or being touched strongly arouses her: 15 gems.
Can no longer reach orgasm without User's touch: 16 gems.
Can't wear tops unless they're see-through: 10 gems.
Hotkey: summon Custom Girl, one-mile range, unlimited: 5 gems.
Hotkey: flashes her tits or pussy, User's choice, 5 per day: 20 gems.

It was no small feast of options, but it presented me with more questions. If I was honest, I couldn't even be sure when her period was, so whether that benefit would happen sooner or later was unknown. The see-through tops would probably create all kinds of problems I didn't want for her, as Ms. Hatts wasn't the only one who could dish out disciplinary actions. Her ears being as sensitive as clits, while inviting for our head sessions, would also mean anyone could get her engine revving when I'm not around even easier. Selfish, I know, but while I don't care about Ms. Lia's sexual escapades being public, my sister is another matter entirely. She's mine... that is, she's my family.

Then again... maybe I should remember what gets me progress in this app and with the "developers" behind it. I can't be too selfish, after all... even with my sister. I make small compromises with myself before considering the list of old and new options and making a few careful picks.

Alice Haines:
Heavy Makeout Hello
Dreams of You
Arousal Multiplier (300%)
Sensitive Clit
Needs You to Cum
Summon Custom Girl (1-Mile)
Total Cost: 39 gems. Purchase?

I almost add a few more options, but tomorrow is a long day: I should at least keep these 7 gems I've got left in case something comes up. Satisfied, I tap the purchase key and contemplate her awareness modifiers. Everything will have awareness turned off, as tends to smooth things over... well, everything except the wet dreams and her need for my touch to have an orgasm. I need her to be aware of those... painfully aware, if I'm to make use of her sexual confusion.

Satisfied, I strip all my clothes off and summon my dear sister to my bedroom with a tap of her new hotkey. A moment later, with wild hair, a giant t-shirt, and the softest booty shorts she owned, my half-asleep sister has stumbled through my door with a confused look on her face. I wish I had these options earlier to summon her during her shower, but with two swift clicks to her stripping hotkey she's soon in as naked a state as she would've been then.

As she drops her shorts, she murmurs through the haze of waking, “What the... why am I...? Hey, did you call me over or something-? Wait, why are you naked, you little... oh fuck, is that why you called me over?” Her baffled confusion at the summoning tries its best to rationalize why she'd come here in the middle of the night, but I'm not much interested in seeing her continue to stumble through these motions.

I suppress a snicker as I consider how far to take tonight. “Well hello, sis.”

“Ah... yeah, hi Dave-?” As her top splits open and is pulled down to fall away, revealing those perky tits of hers, she begins moving. She's descending upon me, her eyes as wide and confused as one might expect when they're suddenly, inexplicably making out naked with their equally naked brother. Her dry pussy lips settle on flanking along the length of my cock as she sits on my lap and gyrates with her body and lips pressed against mine. She tastes like toothpaste and smells like flowers, and her body is hot from being under the covers. It was only a minute or two, but did she already start up some dream about me? Maybe she just runs hotter than I do as she warms me with her flesh.

Her gyrations masturbate my cock so shamelessly as to make me doubt my alleged stamina for tonight, and it's some precious dozens of seconds before she finally breaks her mouth and tongue from its dance with my own, her nipples hard, her crotch moistening as it hotdogs my erection, and my hands gripping and massaging her irresistible and ultra-sensitive ass. Her eyes are unfocused and she moans her complaint, “F-Fuck, I don't even... like you, so why...?”

“Well, you can suck me off... or you can keep doing what you're doing.”

“This... aah... this isn't what... the bulldog... said to... do...” Her words struggle to escape her as I knead her cheeks and help slide her along the meat she's sitting on.

Deciding to test out how her different erogenous zones compare, I reach my hands up and grab her hair in two fists before slowly yanking them down and backwards. Her head moves with the ****, but soon her hands are fleeing to cover her mouth as she whines and wails. A flood of her juices begins puddling on me so fast that I'm half-afraid she's peeing on me, but the odor is unmistakably her arousal. Gasping, she leans into me and begs, “Don't keep... doing that...!”

“Then you need to lay on that bed.”

“I-I'm not going to fuck my brother-!”

“I'm going to fuck your face... at least, until you want to do something else.”

“Gross!”

“Your pussy seems to like it-”

That seems to snap my sister fully out of her daze. She hisses her words, “Oh just get this over with! And I'm on top, Dave, not you!”

Sighing my frustration, I obey and lean back to let her position herself accordingly: her bobbing on my cock, her pussy in my face, and that prized clitoris taunting me as it did before. But things have changed, haven't they? I greedily suckle on her clitoris until I'm glad I gagged her with dick first. She peaks and shakes as all the exponential pleasure mounts, giving her a thrill and release matched almost perfectly by Ms. Lia these days. I massage her ass for the trifecta of pleasure as I continue to enjoy my meal of the odd spray from her sex and the meaty nub that begs to be tormented, and I wish I could tell you I devised some clever way to get laid in truth, to explore yet more of my sister's body and its new blessings...

... but two minutes later, my little stamina theory proves a flop. My half-filled balls do their best to paint Alice's mouth once again, and this time she's too busy coming to bother trying to fight the flood on her tongue and teeth. Slowly she gulps it down out of sight while I smother my own moan in her glistening sex.

It was going to take some practice if I was going to get the full advantage of my power over Alice... but on the plus side, it would take the better part of the night and tomorrow for her to realize what a state I've left her in.

“A... Alright, that's... whew... who taught you all... that?”

“Porno,” I mock with a grin. “You can always come to me for release... you know that, right?”

Rising off of me, she scoops her clothes up without putting them on. Her whole body seems a shade of pink as it continues to blush from coming down. “Don't... don't treat this like it's normal, Dave; it's not!” Her words are low and angry; frankly it's a miracle we got away with it without waking mom. “You're my brother! Outside of this bullshit from Hatts, you need to... you have to act like it!”

“Well, I don’t know about...” My words trail off as I look at her face. Her eyes are shimmering. Her face is struggling to not twist into an ugly, crying mess. I’m stunned by the state of her... and my mind drifts to what tomorrow is going to be like, and what further confusion likely awaits her. “Hey... you didn’t do anything wrong here, OK?”

“I’m... I’m sucking my own brother off, how is that-?”

“You’re only doing that because we don’t have a choice. Hatts is the one responsible for this.” A lie, but I can’t let guilt **** the truth out of me. “I’m just trying to make this as pleasant as we can... and if it's fucked up, at least we won't feel bad while we're doing it, right?”

Her dam finally breaks as tears begin to trail down her cheeks. I'm stunned as she wipes them away and, with a fragile voice, whimpers, “Y-Yeah... fuck, I guess. Thanks... Dave.”

I nod solemnly... even as guilt finally chews on my mind. Still, there's no reversing what's been done, so I just need to make it right.