Janice

"Janice, my classmate."

Olivia quirked up an eyebrow. "Oh, the nerdy girl who works at the diner, right? That's cute. Okay, well, I can get started on dinner when you're, uh, done. I thought maybe we'd do steak tonight - I have some thawing." My sister took off her suit coat, probably ruined from her running mascara, and headed to the hallway and her room, letting down her long hair as she did. Over her shoulder she called, "Will Janice be eating?"

I thought for a moment. "Yeah, make her one too, please. Let's make her feel at home."

"Good boy," she threw back with a chuckle, then shut herself in her bedroom.

I checked the time again. I'd need to nut in the next 45 minutes. Thankfully, I'd apparently added Janice on Snapchat at some point.

<How soon can you be here?>

I dropped her a pin with my address. It took her less than a minute to respond.

<15 minutes :)>

<See you soon>

I rushed to my room to get ready. Like any teenage boy's, it was a mess. I picked up a bit here and there, trying my best to hide dirty laundry and spraying some good-smelling stuff into the air and on fabric which probably hadn't been washed in weeks. Whatever, it was just going to get dirty again, right? Especially now with my disease and the amount of 'use' my bed would see. And probably my chair. And my floor. And my desk. My pace slowed as I talked myself out of working so hard, and soon I was satisfied enough. Janice was coming here to keep my nuts empty, not be my girlfriend.

I discarded my clothes to stand totally nude in the hallway. A part of me cringed every time I thought I heard Olivia's door begin to open, but eventually I stopped worrying. Yes, I was a chubby, out-of-shape nerd, but I was a deathly ill nerd too, and being naked and fucking around my older sister was part of my treatment. It was just something we'd both have to get used to. Janice would be here in a few minutes, and that would give her less than half an hour to get me off. Vaguely, I worried she might be held up somehow. If so, it would mean EDPHub and my hand again, like it had always been. Of course, Olivia was right behind her door, probably showering...

I shook my head to clear it. Chill, dude - she's your sister!

Unbidden, my cock hardened. Was perversion a side-effect of being a Three Hourer? Maybe, but I had always been a pervert, truth be told. Thankfully, Janice threw open my front door about that time, not bothering to knock or even close it behind her. The moment she crossed the threshold she began pulling off her T-shirt and shimmying out of her high-waisted shorts. Getting the hint, I strode over to her and pushed the front door closed while singlemindedly groping a pale cheek of her nerdy butt as soon as they were exposed when she slipped her panties off.

Janice pressed her ass against me and actually pinned me between it and the wall in desperation. Her face was red and a thin sheen of sweat covered her nakedness. She must have been in a hurry. Up and down she ground her booty against my solid shaft, somehow expertly catching it between her asscheeks. The sensation was heavenly, and I held onto her pale butt for dear life.

"Pussy or ass?" She sounded winded.

I thought for a second before responding, "Ass."

Janice wasted no time, spreading her leaking cunt's juices with two dutiful fingers to smear and penetrate her asshole for my viewing pleasure, centimeters from my turgid cock. No lube required then? I hadn't considered that when I greedily demanded anal.

Janice, after finishing this maneuver, gripped one of those perfect, soft asscheeks and pulled it open for me, revealing her pink little butthole above her glistening brown bush. Both were smeared liberally with what her pussy still leaked. "We need to hurry, John - you don't have much time," she half-whispered, huskily. With a girlish groan she stuffed first one, then another digit inside herself to prepare the way. Her breathing was heavy and raspy. When Janice was ready, she reached back and grabbed my cock with a trembling hand, then guided its head to her tight pucker. I felt like I had been transported straight to heaven as my classmate's warm, snug ass began to accept my dick. The resistance lessened, and soon I had all of me buried in her rear passageway up to the root. I felt the girl tense and she braced herself by grabbing onto my arms, which still held my hands firmly in place on the beautiful expanse of booty I'd just claimed.

My eyes rolled into the back of my head while we fucked in silence. I made little humping motions with my hips and Janice fucked back to meet them. I covered little ground in her, but the sensation was overwhelming, and totally unlike how Gwen and Emi's pussies had felt wrapped around me. Janice's butt was more than capable of handling my thrusts and it made me consider thay she might have practiced with her ass when she masturbated, the naughty girl. In fact, it seemed almost hungry for it, wringing out a lustful moan from me when I bottomed out each time. Janice stayed mostly silent, only inhaling sharply when I gave a particularly hard hump or groaning when I slid further outside the confines of clenching ass.

I'm not sure how long our session lasted, but eventually the sweet sounds coming from Janice's mouth told me she was nearing climax. "Fuck...uhh, uh! Oh, God! Hurry! John!" By now I was fucking her butt with all I had, grunting like and animal and reveling in the feeling of domination and of going balls-deep in tight, sinful teenage behind. I got so swept up in my thrusting and Janice's clawing grip upon my arms that I hardly noticed the edges of my vision beginning to blacken.

"John! Oh!" The girl squealed out as another of my thrusts hilted into her butt. "Cum!"

But I had no intention of cumming so quickly. By God, her ass was making me go wild. I gripped a fistful of her unkempt hair and pulled her against me at a frantic pace, pistoning in and out of her vice-like depths with long, powerful strokes. The darkness at the edge of my awareness crept further in. Now I thought I must truly be in rut, losing all sense of myself. If I'd not been so caught up in my first bout of anal sex with my nerdy cocksleeve, I might have realized I was losing consciousness from lack of ejaculation. As it so happens, I blacked out before I realized what was coming over me.