Once again, Cassandra woke me after a long and unmentionable yesterday. No bursting through the door this time, however. Today, my sister knocked once, quietly, and then again with more volume a minute later. Even when I called for her to come in, she took a moment before opening the door.
Her nose crinkled as if she smelled something, and she blushed. "Um, Eric. It's almost lunch β uh, aren't you going to work?"
I wiped sleep out of my eyes. "No work 'til tonight, and there's no law against sleeping in. You okay?"
Cassie was acting a little weird, like she'd had too many coffees for breakfast. She leaned against my dresser then stood back up. "Fine, fine. Alice and Victoria are coming over, we were going to hang out a bit before, um..." Her eyes settled on my blankets and she fidgeted more. "Uh, are you naked under there, bro?"
I lifted myself onto my elbows lazily. "Maybe?"
"God," she muttered softly to herself, then added louder: "gross! My friends'll be here any minute."
"Again, there's no law against it," I said, feeling dainty fingers slide over my indeed-naked hip.
"Right..." Cassie, usually supremely confident in bossing me around, seemed as though she didn't want to meet my eyes. "It's still gross, though. I don't want to β gross." Her eyes focused. "So stay away from us, kay?"
I shrugged, and felt weight shift on the bed next to me. The fingers were moving under the covers. "I wasn't planning on leaving my room naked, you know."
"Oh. Oh, right." She fidgeted like she was getting paid for it. "Well, look, we'll be in the den. Try not to..."
"Pretty sure all your friends know that your older brother is terminally unhip."
"Yeah, yeah, right," Cassie replied with an uneasy laugh. "Although β that Rosie girl. Is she coming over today?"
"Uh, I don't..." The hand moved towards my groin. "No, I don't think she is," I said, trying to keep a straight face.
"Oh," she said disappointedly. "Kay."
"Not today," I said, feeling dainty fingers slide over my hip. "Maybe this week, though. You two seemed to get along Saturday, so I guess you're not gonna freak out if she hangs out here a bit?"
"Freak out? Why would I freak out? No way, I'm β " Cassie checked herself. "It's cool. Just... later. See you later."
A finger ran down the length of my cock, but my sister left before things could get any more incredibly awkward.
Rosie wriggled into a tighter spooning position beside me and kissed me on the cheek. "What a sweet sister you have, Eric."
Thank goodness for invisibility. Thank goodness for blankets, too. I flipped the sheets off and surveyed myself.
My body had changed since yesterday.
For the few hours I'd been awake out of the last twelve, Rosie had told me some of the how and why. Short version: some sort of emotional/physical feedback loop happened during my orgasm, and she lost her leash on magic for a minute. The long version involved soulbounds, orgone cascades, thaumic resonance, and probably Horcruxes too at some point. I'd figure out how all this worked eventually, but the upshot was that yesterday's Shaping was a little less... restrained than usual.
"Oops," Rosie had summarized.
She'd said something about pheromones, androgens in my exocrine glands and other slightly-worrying things, but none of those changes were visible. My muscles were, and an unfamiliar sight they were too. I'd never been exactly fat, and I wasn't yet exactly ripped, but there was definite definition there. I looked like I at least glanced at a barbell regularly, and had a working relationship with my abdominal region.
My dick was what held both our attentions, though
"Oops," Rosie whispered to me, "but
yum
."
My new cock looked... dangerous. Like a bear in its den, half-asleep but no less potent for it. Like a loaded gun, a gun the hammer back, a round in the pipe and no safety to speak of. It was warm and bruised-purple and wrapped in heavy veins like ivory on a column, and it was big.
Rosie's fingers danced over it as I watched, deft as a pianist as she teased and tugged me to full size... and kept tugging. I'd never been small, exactly, but an average-sized cock isn't hard to handle. Now Rosie was having difficulty getting her fingers all the way around my shaft, and the obscene thing was growing up towards my solar plexus.
"Oh fuck," I mumbled as arousal pulsed through me and my not-so-little friend with every movement of her hand. 'Obscene' was right. Also 'monstrous', 'predatory', and 'really fucking horny'. "Oh, what the fucking fuck."
"I know," Rosie murmured as if in a trance. Head resting on my shoulder, she stared down at the freakish organ she'd conjured. "Pit take me... so thick. I never want to let go of it."
"You might get your wish, because I don't know if I could escape you with this thing weighing me down. Damn it. this is β ohhhh fuck me," I grunted as she rubbed her little finger across the slit of my glans. Her pinkie almost sunk into the proportionately-huge hole.
My cock drooled enough pre-cum to make a pool on my belly.
"I can't wait to," she moaned in her voice like velvet. She was kissing my neck gently, and I could feel her tail stroking up and down my thigh as she masturbated my huge shaft. "You're gonna fill me up, stretch me out, make me squeal..." Each whispered temptation was accompanied with an ascending kiss, until her lips found and embraced my earlobe.
"Wait... this feels..." Good. Great. Amazing. Too much of all of those; there wasn't really a word big or hard enough to match the feelings pumping out of my groin. I realized absently that I'd embraced Rosie and was running my fingers over her perfectly-proportioned curves.
Outside my room, the front door slammed. Indistinct voices and footsteps moved in the corridor outside.
"Cassie's friends," I said. "Gotta keep it down β "
"I hope they stop by to say hi," Rosie said, slicking her hand up and down my shaft faster. The precum made me salmon-slick. "One look at this and they'll β "
The voices passed my door, heading to the den. The walls of the house were fairly thick, but Rosie would probably have to put up an illusion of silence once we got going; this really was feeling way, way better than it should have.
"Mmh... s'bigger, so more... more nerves," Rosie explained as she nibbled on my ear. "More sensation. More," her fingers pressed down hard on the sensitive underside of my glans, "pleasure."
I groaned helplessly and rolled over to kiss her, dripping spoonfuls of precum onto the bedsheets. Facing each other side-by-side like this, she could masturbate me with both hands; even so, there was a lot of throbbing shaft left uncovered. Her kissing was (if possibly) more aggressive than usual, and I matched her instinctively. I pulled back with her lower lip trapped between my teeth, and she moaned β high and desperate β when I released her.
"Oh, sin..." she whispered. "You have no idea how holding this is making me feel."
"I don't know about that," I said, my voice throaty. This close, our breath was mingling and the very air sizzled with her wildflower scent.
"No, no, you don't... I put too much of my Lust into it, I can't..." She groaned as I shifted my hips and Supercock twitched in her hands. Rosie's demonic form was enchanting, terrifying, but right now she was so bewitched that she looked like a schoolgirl. I raised myself up over her and started gently licking her inhuman ears as she whispered her confession. "Uuhhh, yes do that β pit take me β I couldn't think, wasn't thinking, I just β unnhh β just gave you the cock my body