Homestuck: Cherry Limeade Fic
Despite his previous wariness upon seeing her naked, Calliope actually brings a smile to her face as she watches the tables turn anew. Instead of his former bouts of fear and disagreeance at her strange, alien, wriggling bulge, his face now flushes with lust, and he squirms under her almost eagerly. Suddenly her tentacle-like appendage isn't so frightening when it's curling around his dick and giving him a nice squeeze.
Caliborn lets out a muffled moan behind the hand that covers half his face. Shut up, he tries to tell himself, before another shaky one escapes as his eyes catch her length encircling the entirety of his shaft until it's thin, slimy tip brushes over the head affectionately. These damn human bodies are so sensitive... and damn does he love it. Calliope looks so proud of herself, her own face filling with blush because... well look at this! She's pleasuring her brother! Turning him into a flustered, aroused mess.. it's delightful! She giggles under her breath, grabbing ahold of his legs and hoisting them up around her waist comfortably, nails digging slightly into the soft skin.
In turn, Caliborn lets himself lean back, holding his body up by his shaking arms. His face uncovered, he now bites and chews on his lip as he gets a full view of their entangled lower halves. He mutters out a quiet "fuck" and a complaint, questioning why he was becoming the bottom bitch here. Calliope simply shushes him, he's enjoying it isn't he? And he nods, because yes, he is. But damn if he isn't going to complain anyway, and try to pretend he isn't enjoying the way their crotches are grinding together.
Her bulge squeezes and slides smoothly up and down his cock, making him hiss at the pleasure, toes curling. She finds it adorable. And now, just to tease him, she releases a hand from his leg, instead placing it on his own twitching fingers. He jerks his head to the side to look, staring with his wide, red eyes. Oh dammit, not this, not now. As if his face couldn't heat up any further, he watches her hand squeeze his own before her fingers slowly trail up his arm, caressing every soft curve it had to offer until her palm finally smoothed over his neck. All the warm sensations of her hands send sharp shivers down his spine. The affection dammit, she knows his ultimate weakness and it eats at him. He simultaneously hates her and.. and... admittedly... loves her right now, anticipating what comes as her hand slides over his heated cheek and her face draws near, leaning in closer, closer... until her lips touch his neck.
He gasps, visibly aroused further by his sister's actions, legs squeezing tight around her waist while his hips desperately buck up into her member. Calliope just smiles against his sensitive neck, knowing full well what she's doing, and she loves it. It was too fun to tease him, letting her thumb stroke his cheek while she litters his skin with kisses, steadily working up from collarbone to ear. And as their bodies inch closer together, they both lean backwards until Caliborn can feel his back against the cool floor. He's thankful he no longer has to support himself, and he flings his arms around Calliope, killing the distance between their bodies in a tight hug.
Again, more muffled moans and "fucks" with her nipping those sharp troll teeth at his neck and ear. It tickles, and yet feels really damn good. He returns the favor by dragging his nails down the full length of her back, which she happily purrs about, right in his ear. Her warm breath is driving him mad, and as she sucks on his earlobe, her fingers running softly through his hair, he can feel himself reaching the edge. Caliborn pants to his sister, their hips thrusting in time together, nails digging into her back until he draws her lime-colored blood under his fingertips.
When she knows she's pushed him far enough, it's then, that she whispers to him, whispers sweet affections that beg him to leap over that edge for her, just for her and only her,
"I love you... brother.. I wish to be with you, forever, I wish us never to part... I truly... love you..."
And send him over that edge it does, throws him so far over it that his whole body shakes against hers, face burying itself into her hair where he moans desperately, trying so hard not to scream as he feels himself unloading his peculiar human seed over his own stomach and her bulge. The waves of pleasure are almost too much for him, and she can tell. How wonderful it is, knowing she made her own brother feel like this, and it's not long before she finds herself in the midst of an orgasm of her own, arms squeezing the life out of him as she moans and squeaks into his ear, body writhing through the pleasure until it finally ends and they collapse together in their mess. They pant together now, Caliborn's face twisting into a smile at last. This is what it was like to be intimate, truly, intimate. And he didn't regret even a moment of it.
"I love you too, sis."