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Lan Wangji's sister is a complete menace. She's only two years older than him and yet it feels like forever with how different they are. Xichen goes out with her friends after college and comes back home exhausted but happy even as Lan Wangji studies all the time to pass the university exams.
The most recent annoyance from his sister, he has found, is her sudden need to walk around without a bra on. Xichen found skimpy nightclothes that they were not allowed to wear back home and now she wears them all the time.
Her breasts are large and the air cold. She doesn't even seem to mind that he can see flashes of her areola or that her hard nipples peak out rather obviously.
It gets worse when she starts to try on the more provocative clothes, asking him to zip her dress up as she shoves her boobs in. She rarely manages and ends up wearing binders for those dresses. And she even makes him help her wear them.
Xichen's soft breasts bounce against his touch and he learns to be gentle because his sister has sensitive nipples and breasts. He still can't help it if his nail occasionally flicks a nipple or if he accidentally pinches it hard enough to make her moan when he's pulling off her shirt or dress.
She just laughs it off though, but he sees the way she tries pinching her nipples the exact same way and fails.
She teases him more often when he does things like that, asking him to get her bra she left on the bed, asking him to check if the front of her clothes fit and he pulls the shirt forward by her nipples and stares at her as he says no and she blushes.
Xichen starts icing her nipples sometimes when he pinches too hard, sitting with only in her underwear and an ice cube melting on her nipple. He never quite offers to help her, but he certainly watches as she shamelessly flickers through channels, her eyes flicking to check if he is looking at the television of her beasts.
He's always looking at her pretty nipples.
It comes to a head when she laughs about a massaging oil she got from a friend and he offered to massage her so she could try it. She goes silent for a long second before agreeing, praising her younger brother for being so helpful and diligent even as her eyes silently hope for something else.
Xichen sits on the bed quietly until he makes her lay down. He starts from her legs, pouring enough oil and warming it before starting from her feet. Her feet are soft, she takes care of them. He digs his fingers into the muscle and ignores her startled moan. He goes up slowly, massaging her calf and then her thighs, raising her shorts high until they seem more like panties. He starts again from the sole of her other foot and watches silently as she pants.
After her legs, he does her arms, and then he sits on her ass, his cock twitching as he massages her shoulders. Her skin is silken under his hands, and he massages her firmly, round and round, digging his fingers into the knots of muscle that he finds. His sister is pretty, he thinks, then he unhooks her bra and keeps massaging on.
Xichen doesn't say anything, trying to stifle her moans as he slips his fingers under her panties and presses his fingers into her soft ass. He can feel her clench up as he grabs her ass fully, and then he holds them in his hands before squeezing them.
She lets out a loud sultry moan, unable to keep silent. He flips her around, throwing off her bra and stares at her heaving breasts as he starts from her feet again. Her eyes flit to his occasionally before going up to the ceiling. Her pussy clenches each time his fingers dig into and massages a knot of muscle out. He slids his hands up and pushes down her shorts. She glances at his face, blushes before throwing her shorts off.
Her underwear is soaked.
He oils up her hips, grabbing her ass once again to watch her stomach clench and her pussy gush. His sister is pretty, with her hard nipples and tiny mouth. She moans prettily. He likes the sound.
He leaves her wet squelching pussy alone, and oils up her arms again. She's frustrated, but she can't say anything as he finishes massaging her arms. He sits on his hips, hard cock right up against her wet pussy and she let's out a loud whine, throwing her head back. Her breasts bounce and he finally grabs them. Xichen freezes, her nipples peaking at him like a temptation.
Her breast are pretty.
He oils her breasts, massaging her underarm, then going up slowly, teasingly, to her hard, desperate nipples. They beg for his lips to wrap around him but he simply teases them in circles, as he grinds his cock down on her pussy. She's so wet. The sound squelches as she grinds up desperately.
He pinches her nipples, before stroking them gently. He grabs her breasts and pulls them up, her nipples forming the peaks of the mountains they create. He oils between her breasts wordlessly and she grinds up, her hair spread on the bed, her mouth fallen open as wanton moans escape her.
She's sultry, beautiful. A temptation instead of his sister.
He pinches her nipples again. He wants to bite them.
“Please,” she cries out as she grinds her clit onto his cock. He lets a hand slit down, pulling down her underwear and she whined, spreading her legs, as the scent of her sex surrounds him. He doesn't take out his cock, doesn't fuck her. But he bends down to bite her nipples.
She cries out, her pussy squirting all of sudden as she starts to shudder. She's having an orgasm. She's coming. He's never seen someone have an orgasm before.
She's pretty, flushed pink. He leaves bite marks around her nipples and breasts. Maybe that will make her cover up more. He pinches her nipples more. Her breasts are pretty and he squeezes them. She's crying, wailing, her hips snapping up, thrusting against his hard cock and she's crying that she's empty.
But he's not supposed to fill her up. She might have abandoned the rules they grew up with, but he hadn't. He had no intention of filling her empty pussy. He only wanted to hear her beg.
His sister should not be so wanton and hungry with him. He's punishing her.
She comes four more times from her nipples and grinding on his cock, before he is satisfied. She falls asleep and he leaves her there, sprawling naked in her bed, her legs spread wide, pussy soaking her bed.
When her friend comes in to wake her up the next morning, he lets her in and his sister wakes up with a finger inside her soaked pussy and hungry eyes that belong to someone that is not her brother.
She doesn't care.