"Get on your knees."

Confusion plays across Sofia's face even as she obeys. "What- John, what are you doing?"

You look down at her, at your stupid bitch of a sister, on her knees in front of you. Who's the simp now?

"What am I doing? What are you doing, Sof? Why are you on your knees in front of your brother?"

She is silent for a long moment. You decide to help her out. "Could it be that you want to make sure your brother isn't a simp? That you want to finish what you started-" you grab your hard cock through your pants and her eyes are immediately drawn to your bulge, "-with your stripping and teasing?"

Sofia's eyes dart between your face and your crotch. "I- I..."

"Please show me your cock," you say slowly. Your sister looks up at you in confusion. "Say it. Ask me- beg me to show you my cock."

"John..." Big blue eyes look up to meet yours. "Please... show me your cock."

"Anything for you, Sof." You drop your pants and boxers to the floor, freeing your erection. Those big blue eyes are now locked on your hard member. You close the door to the bedroom and step forward until your cock is waving an inch away from Sofia's face. A complicated expression is on her face, a mix of fear and lust. "Now say thank you."

She bites her lip as she stares at the cock swaying in front of her. "Thank you, John."

You notice she is breathing faster and, if you look closely, her face is starting to flush. "Are you turned on, Sofia?"

"I don't know, I-" she stammers.

"Don't lie to me, slut," you interrupt. Your confident older sister moans at the insult. "If you don't know, check that little coochie of yours. Are you wet?"

Sofia reaches between her legs. "...Yes."

"Yes what?"

"...Yes, John, I'm wet. I'm... turned on."

"Why, Sof? Why are you so horny?" She hesitates, and you add, "answer me."

Her eyes turn up to meet yours. "Because... because of everything. How I showed myself to you. Your reaction to my body. How..." she glances at your cock. "How hard I made you."

"You did make me hard, didn't you, Sof. Are you proud of that?"

She bites her lip. "Yes."

Your voice gets hard. "Are you proud of making your brother a simp?"

Sofia reacts like she's been slapped. "No, I- I didn't..."

You interrupt her again. "Do you want your brother to be a simp?"

"...No..."

"But you've teased him and gotten him hard. How are you going to help him?"

Your plan to get your slutty bitch of a sister to agree to jerk you off is derailed when she leans forward and takes your cock into her mouth. You gasp, and she moans, the vibrations feeling amazing on the top half of your dick that is surrounded on all sides by the soft wetness of Sofia's mouth. Then she starts to bounce her head up and down on your cock. A blowjob. Your smoking-hot, still-naked, still-wet-from-the-shower sister, is giving you a blowjob, just like that. And it feels amazing.

She puts one hand on your thigh to steady herself as she takes about two thirds of your cock into her mouth, then pulls back until only the tip is inside, swirls her tongue around your tip, then plunges her head down again. And again. And again.

She pauses her sucking and moans again, and you finally notice what her other hand is doing. It's still between her legs, and it's moving slightly.

"What are you doing down there, Sof?" She looks up at you with her lips around your tip - and isn't that a wonderful image, then withdraws so she can answer.

"I'm... playing with myself," she answers breathily.

"Are you planning to get yourself off?" you ask. She nods, panting. "Just make sure you get me off first. Got it, slut?" She moans in response and dives back onto your dick with renewed enthusiasm.

Fuck, this feels good. In fact, once you stop talking and start focusing on the view of your sister's head bouncing on your dick, not to mention how it feels, you start to feel an orgasm approaching. You're breathing fast now, too, and each plunge of Sofia's head is accompanied by a quick "mm, mm" moan, followed by a shock of cold air on your wet dick when she withdraws, before swallowing you in her warm mouth again.

Sofia closes her eyes in pleasure, and you feel her warm hand withdraw from your thigh. You look down and see your sister has one hand still between her legs, toying with her pussy, and the other is now kneading one of her amazing breasts.

What a great idea. You reach down and roughly grab the other one, eliciting a longer moan and an increase in rhythm from your cock-sucking sibling.

You're touching Sof's amazing tits. The ones that are so firm and perky that they "pass the pencil test." It won't be much longer now.

"Don't you dare fucking cum yet," you growl. "I'm almost there. Keep sucking me off, Sofia, until you've fixed this problem you caused.

"John..." Sofia pops off your dick quickly enough to say a word or two at a time, trying to speak while still blowing you. "Please... don't cum... in my mouth. Use... my towel." Her shower towels lie on the floor beneath you both.

That's not going to happen, but you decide to half-honor her request. "Sure Sof, I won't cum in your mouth. I'll let you know when I'm about to cum." Gratified, she renews her sloppy dick-gobbling, and you start to feel a tingling run up your legs and a tightening in your balls. Fuck this feels good.

"I'm getting close now. Don't stop, slut, I'll tell you when. I want to use your mouth to the last possible second. Fuck yes, fuck..." You squeeze her tit hard and Sofia half-screams, half-moans around your cock. You feel your load, the one your slut of a sister made in your balls by flaunting her perfect body, churn and start to flood your cock. It's time to give her her reward. "I'm coming!"

She pulls off your dick with a gasp and moves to pull away, but your firm grip on her tit prevents her. Meanwhile you grab your hard cock, wet with your sister's saliva, and aim it just as the first blast of a truly momentous orgasm spurts out of your dick. Out of your dick and onto her face.

"Fuuuuuck yesss," you moan, while your older sister takes two more to the face until her lust-addled mind realizes what is happening and she pulls away hard enough to break your grip on her tit. That's going to leave a bruise.

Sofia loses her balance as she falls back, and takes another load, this time to the stomach and thigh. Both of her hands being busy, she can't catch herself and falls all the way onto her back. You simply step forward and follow your target - your sister's beautiful, bitchy face - and kneel down over her to continue unloading.

This truly is a momentous orgasm. Her face is absolutely covered, and you just keep shooting more of your thick load onto it. Finally your orgasm starts to peter off, and you notice your sister is trembling.

It's hard to tell how she's feeling, her eyes being glued shut and her entire face being obscured by your sperm, but when her shaking increases and her mouth opens in a deep, lusty moan you finally realize the truth. Your sister is coming. And she waited until after she got you off, just as you instructed.

Your cum drips from her face into her open mouth as she moans and she swallows reflexively before opening her mouth to moan again. She's squeezing her breast so hard you think she'll get a bruise to match the other one. She clamps her thighs around the hand between her legs and she shakes. And shakes.

"Oh fuck... oh fuck... ohhhhh fuck," moans your cock-gobbling cumdump of a sister. You watch until her orgasm finally subsides, and she lies there on her bedroom floor, panting as your cum drips down from her glazed face.

"Thanks Sof," you sigh. "I'll leave you to... clean up. There's a towel right here." You nudge it against her with your foot. "Or maybe you'll want another shower? I dunno. Anyway. I'm here any time you want to practice flirting again." With that you return to your bedroom, pants in hand, dick slowly softening, balls satisfyingly empty.

Now... which video game should I play tonight?