Time of the Month

Story by tetsumi on SoFurry

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I rolled over in the bed, snuggling up behind my girlfriend. She didn't move, or acknowledge me, so I put my hand on her hip. She stayed put, again. I slid my hand a little higher, moving slowly up to her ribcage when she grabbed my hand. "Stop it, Jason. You know what time of the month it is." she said, pushing my hand off her hip.

"Yeah, I do. Come on though, I don't mind."

"Well I do!" she said, with an air of finality.

"I...I kinda like it..." I said, sheepishly.

She rolled over toward me. "Really?" she said, looking up at me from my chest, her hands worrying the blanket between us.

"Yeah, I mean, it's different. It's been months since we've done it...well, at this time of the month. Besides, once you get started, you know you like it." I brushed her hair over her ear and looked back at her.

"Are you sure?" she said, rolling away from me again and pulling her knees up to her chest.

"Positive." I said. "It's like nothing I've ever experienced before."

She waited for a moment. The ceiling fan whirred softly overhead as I listened to my own breathing in the dark.

"Ok." she said, finally. "You know what it takes to get me started." My inner child did the happy dance and I snuggled up behind her again, my hand on her hip. I pulled her hips back into me, and I felt her arch her spine just a bit. Nothing much, but the small movement just drove me wild. I slid my hand slowly along her smooth skin, feeling her ribs bump along under my palm. I cupped her breast softly, and she let out a breathy moan. I tilted my hips into her again, and she pushed more firmly back into me. I tweaked her nipple gently, and she let out another soft moan. "Ohh...just...just a little more." she moaned, grinding into me now. I slid my hand back down her stomach, feeling her bellybutton slip beneath my fingers, and gently worked my hand between her legs. I could feel her tiny stubble under my fingers, and I pushed deeper, nearing the top of her mound. "Al...almost..." she breathed, pushing against me again.

I curled my fingers over the brink, feeling them slide past her pelvic bone and graze her soft folds. She was already moist, and I knew it wouldn't be long now. She reached over her shoulder and grasped the back of my neck, pulling me close. "Are you ready? Huh...hmm...are...are you ready?" she breathed, her hips now constantly moving, my fingers finding their way deeper and deeper.

"I'm ready, baby, just let it go."

"Ok...oh, huh, hAAH...ok, let's do...hhhuh...let's do, do, DO TTHHHIIISSSS!!!" she moaned and pulled my hand from between her legs. She rolled over quickly in bed, sitting up and throwing back the covers. I could see she was starting to sweat already, and her breathing was picking up. Her shoulders were heaving, and she reached back to unclasp her bra.

"No, let it go. I'll buy you a new one." I said. She looked at me, smiled, and dropped her hands.

"It's starting." she said, chest heaving with her heavy breaths. I watched anxiously for the changes. She continued moaning, her whole body covered in a thin sheen of sweat as she rocked her hips in time with her breaths. Her hands began to wander, caressing her ribs, her hips, and swooping down between her legs for a quick rub, and then back up. "Here we go baby...here, we, huh...mmmm...ah AAHH!" she squeaked, and I saw them begin.

Her tits began swelling, rapidly filling her bra. They strained against the yielding fabric, continuing to push harder. Each breath sent her chest heaving, and her tits were soon overflowing her bra, spilling out in magnificent, glistening flesh. Her nipples were outlined against the fabric, taut and hard, and I heard the first stitching giving way. They continued to grow as she ran her hands over them, squeezing gently and moaning as each breath seemed to fuel their growth. Her bra could finally stand the pressure no longer and snapped, the two halves sliding down her arms. She breathed a sigh of relief and cupped her enormous tits, her nipples poking from between her fingers. "Big enough for you?" she said, still breathing heavily and looking at me with veiled, raw sex appeal. Tiny droplets of sweat rolled endlessly down her monstrous tits, dripping onto her flat stomach and soaking into the fabric of her panties.

"Plenty." I said. "But I want the rest."

She grinned, gave her tits a final squeeze, and leaned forward onto all fours. "Don't worry," she said, kissing me deeply, and shoving my hand to one of her tits. "It's coming." She arched her back, her ass high in the air, and shoved her mouth into mine. She closed her eyes, beginning to moan again, but I kept watching for what I knew was coming. "Hrrmm, mm, ooohhhhh god...." she moaned as her whole body shuddered. She broke the kiss, letting her head drop, her hair brushing against my stomach pleasantly. I watched.

A lump appeared at the base of her spine, slowly growing in size. She continued to moan softly, swaying her hips from side to side and arching her back. Her breath came in short gasps as the lump swelled, and began to distend from her spine. "Ohhh, it's coming....it's cominnnnNNGG!!" she moaned, straining and arching her back as far as it would go. Her monstrous tits swayed beneath her, brushing against my stomach every once in awhile as she rocked her body back and forth. A tail slowly continued to grow from the base of her spine, pushing out further and further, and stretching her panties tight. "It's...it's....ohhh, huh, ha, hrrmmmmm, it's so TIGHT!!" she moaned, eyes squeezed shut as she strained against the changes.

I slid underneath her, between her legs, and pressed my cock against her pussy, dripping now as she tensed her body. She slid her hips down, her pussy taking me in easily, and I exhaled as she slid onto me. She leaned forward and ground her tits into my face, while I ran my hands over her hips, down the gradual curve of her magnificent ass, and grasped the base of her growing tail with both hands. "Jason! Oh, ohhh, Jason....Ja-...Ja...oohhhHHLLLLy fuCKK!!!" she said, quivering as she slid onto me, finally reaching my base as I pulled on her tail, grinding myself into her. I tasted her sweat on her tits as she continued to push them against my face, and I could feel her whole body quiver and tense up as I began to thrust myself into her, controlling her hips with her tail as it reached the end of its growth. She swished it around the room, and I could feel the muscles at the base of her spine contracting powerfully with each movement. Her pussy spasmed as she twitched her tail, gripping me forcefully as I pumped myself into her. Her fluids ran down the insides of her thighs and were smeared all over my stomach as her changes continued, both of us moaning and thrusting into one another.

"Jason, I'm...I'ma-aaahhh, Eyeemmmm gonna cu-...gonna..." she panted, her legs growing thicker as she gripped me beneath her. Her pussy drenched me and continued to quiver each time she flexed her tail. I grabbed one of her nipples between my teeth and rolled it around with my tongue as she continued to gasp and moan above me. I slid one of my hands up her back, feeling her spine beneath my fingers, and touched her shoulder blades. I knew what was coming and pulled her whole body onto me, gripping her tighter. She bounced her hips on me, her pussy drenching us in her fluids, as her body neared the end of its change. Her legs and ass had filled out, rounding out with muscle that pulled her skin taut. Her abs glistened beneath a film of sweat that made her skin shine brightly in the moonlight. Her huge, soft, tits swung heavily beneath her, her nipples tracing soft lines across my face as our bodies writhed together. Her entire body had grown stronger, rounder, and more graceful. I could feel her muscles sliding beneath her skin as she rocked back and forth on top of me, her new appendage sending shivers through her body as she moved it in time with her hips. "Jason, it's commingg...nnn...nnnnaah...nnnnggggg, co-, co- it's coming!!" she moaned, burying her head in my shoulder and sliding her slippery body against mine, thrusting her hips forcefully against my own. I could feel her pussy pulsing in time with her movements, becoming swifter as she neared her climax. My favorite part was still to come.

Her pace slowed, becoming more forceful and deeper. She thrust once, twice, a third time, her breathing slowing and becoming separate pants. "I, I, Jassssoonn, Jas-" she rocked forward, prepping for her final thrust. I gripped her tail with both hands, rocked my hips in unison, and we thrust into each other, both exhaling as we did so. I pulled her onto me, thrusting deep inside her, and I felt her pussy tense in an explosive orgasm. Wings sprouted instantly from her back, filling the room as she threw her head back and screamed in pleasure. Her pussy gripped me tightly, vibrating with spasm after spasm as her body quivered and twitched with ecstasy. With her mouth watering tits hanging perfectly from her chest, wings spread from her powerful, feminine body, I couldn't hold off any longer. I shuddered and came, gripping her hips as she fell forward, collapsing on top of me in a sweaty heap.

She sat up, facing me as we both caught our breath and our vision began to clear. Her wings folded neatly over her shoulders and I watched her tail swish lazily behind her as we breathed heavily and wiped the sweat from our eyes. "Honey..." she breathed, giving me a little smile. "It's never been that good. I've never been able to let go like that before." she said, shaking her head in pleasurable disbelief.

"I know." I responded, leaning back on my hands, my chest heaving as well. "I think we need to make this a monthly thing!" She laughed, and we rolled into each other's arms. She wrapped her tail around my waist and pulled me into her. I laid my face against one of her tits. "So..." I said, tracing a line down her spine, around her tail, and over her luscious ass. "Ready for round two?" She just giggled and draped a wing over us, pulling me even tighter.