Knockers

As we lay there catching our breath, Amy walked past us on her way to the kitchen. She was wearing the skirt I had fucked her in earlier, but a towel was awkwardly wrapped around her torso, straining against the weight of her enormous breasts. The fabric barely contained them, her bouncy flesh threatening to spill over at the with every breath she took.

She glanced in our direction distractedly, then did a double take when she noticed Mom's svelte body resting on mine. "Mom? What happened?" she asked with an amazed expression, eyes wandering up and down Mom's body. She didn’t seem to notice or care that Mom was naked, or that she was fully impaled on my cock, just that she looked healthier, sexier than ever.

"I’m a perfect milf now," she told Amy, though her sultry tone was directed at me. "That’s how John wants to use me." She ground herself on my hard dick as she spoke, her pussy clenching around me.

"Oooohhh," Amy said dramatically, a look of understanding crossing her face. "Finally used our mom, huh?" she added teasingly to me, rolling her eyes. "Only my pervert brother could have come up with the idea to cure our mom by using her," she added, smirking, as she punched my shoulder playfully. "I’m glad you’re feeling better, though," she said to mom, her expression softening.

"Amy, why are you walking around like that?" mom asked curiously, her gaze resting on my sister's towel wrapped chest.

"John wanted me to have bigger boobs," she replied exasperatedly, crossing her arms beneath her massive new chest. "Thanks a lot, bro. I always wanted tits the size of my head," she added, rolling her eyes at me. "All my tops are too small now," she concluded, voice dripping with annoyance.

"Amy," I said with a teasing grin, "why don’t you show Mom what you mean?"

Amy sighed and pulled off the towel with a dramatic flourish, revealing her massive, perky tits which bounced dramatically upon their release, her nipples hard and pointing upward, begging for attention. Mom’s eyes widened in shock as she goggled at Amy’s new chest, far larger than it had been earlier in the afternoon.

Mom hopped off my dick, her cunt making a wet schlicking sound, reaching out and cupping her daughter's massive tits, feeling their weight and firmness. "Oh wow, they're so... wow" Mom breathed, her fingers tracing the curves of Amy’s breasts, her skin stretched taut and smooth, resting high and firm despite their size. Amy just stood there letting her mother feel her up as if it were perfectly normal behavior. I couldn’t help but laugh at the absurdity of the situation.

Mom turned to me, placing her hands on her hips, her large, firm breasts thrust outwards, eyes serious, trying to effect her classic angry mother pose, but ending up sexily posing for me. "John, these are so big they’ll make your sister’s life... difficult," she said in a serious voice that nonetheless was sexy as hell. She didn't seem to be able to not sound sexy anymore. "You can use Amy’s breasts however you like, but you need to consider how this effects her. How is she going to function with those on her chest," she added, gesturing at my sister's boobs dramatically.

Seeing mom's disappointed look and finally registering Amy's unhappy expression, I realizing that maybe I had gone too far this time. I had been caught up in the moment, the wonder of discovering I could change my sister's body, and then teasing her, but this was was serious. Now that I was looking at more than just her boobs, I could tell Amy was having issues even standing there without awkwardly adjusting to deal with the huge, unfamiliar weights on her chest.

"I’m sorry, sis" I said sincerely. "I just wanted to have some sexy fun, not make your life difficult." I considered telling her to have her boobs go back to how they were before, but I didn't want to get rid of those stupendous knockers. They looked great on her, but I didn't want to make her unhappy. It occurred to me that maybe I could do both. "Amy, these boobs don’t cause you any problems. All your clothes are super sexy and fit you perfectly."

One of Amy’s tank tops appeared from nowhere, wrapped around her chest tightly, the fabric clinging to her massive tits without any bra in sight, the neckline plunging deep to show off her enormous cleavage with the lower edge so high is showed off her underboob, nipples barely covered and obvious through the material anyway. Her skirt simultaneously got shorter, now revealing a hint of lace beneath whenever she moved. Neither was something she would never have bought before (they were far to revealing) but her expression brightened up, her posture slightly shifting. I could see the relief on her face as she checked the fit with a satisfied look on her face, her posture no longer displaying any signs of discomfort.

"That’s not what I had in mind," mom said, her voice tinged with disapproval.

"Don’t worry about it," I replied dismissively.

"Bad son. You couldn't just make your sister's boobs smaller, could you?" she added playfully, wagging a finger at me jokingly. "You had to find a way to make her fine with them still being... just too much." Amy rolled her eyes at our exchange.

"But you're a good brother who found a way to use your sister and not screw up her life," she added, her voice low and sultry, sitting next to me and wrapping her fingers around my cock, jerking me off as she spoke. Her grip was firm but gentle, her thumb swirling around the tip with deliberate slowness. The pressure was just right, her fingers dancing along my length, teasing and stroking, making my hips twitch involuntarily. "You didn't have to do that," she continued, her grip tightening slightly as her fingers moved faster, her thumb pressing down harder with each stroke. The wet sound of her palm sliding against my cock filled the room, though Amy didn't seem to notice, patiently standing there waiting for us to finish. "You could have used her and let her deal with the consequences. I’ve never been prouder of you." Her other hand came up to cup my balls gently, rolling them softly between her fingers as she increased the pace, her fingers pumping me with a relentless rhythm that had my vision blurring at the edges. "You saw I was unhappy and you transformed me into a perfect milf." And then it hit me, my cock pulsing in her grip as I came with a groan, my hips jerking forward as she milked every last drop from me, painting her chest with my slpooge. Her breath was hot against my ear, her voice soft and satisfied as she whispered, "I've never been happier," before letting go of my dick, sitting back as my cum evaporated.

"You look so much better now. How does it feel?" Amy asked Mom, suddenly animated again, taking a seat on the far end of the couch nonchalantly, ignoring Mom’s comments and actions.

"It was incredible," Mom began, her voice filled with wonder. "So incredible to feel the weight vanish," she continued, turning to me even as she spoke to Amy, moving her hands to her own pussy. Her fingers gently parted her smooth lips, running up and down her slit. "My stomach... deflated, is the best way I can describe it." She ran her hands over her flat stomach, her palm gliding smoothly from her navel down to her pelvic bone, feeling the slight tension in her muscles, her not quite visible abs. Her skin was whisper-soft under her touch, as if she were caressing silk. "I took a deep breath and my boobs grew bigger, higher, firmer as I held them," she said, cupping her breasts gently, squeezing them slightly. Her nipples hardened under her touch, a soft moan escaping her lips. "I felt my ass rounding out, my skin crawling as I got stronger, taller... sexier." She laughed softly, the sound light and musical as she leaned back slightly, giving me a better view of her body. Her finger softly began to thrust in and out of her cunt, her back arching slightly with each movement, her breath coming faster, her hips starting to jerk slightly with each touch. "And I'm younger, right? I feel younger," she continued, voice dripping with arousal, quickly bringing herself to climax. Her hips jerked slightly with each touch, her muscles tensing and her body shuddering as she reached her peak, a soft moan escaping her lips, her fingers moving more urgently against her sensitive flesh.

"You've been so unhappy for so long. I'm just happy you're happy," Amy said excitedly, hugging her mother. It was a touching and sexy moment all at once, a daughter lovingly hugging her mother, happy for her, not caring that our mother was naked, had just finished masturbating right in front of us or about the sexual content of Mom’s responses.

"Mom," I said, my voice low and rough with desire, unable to stand it any more, "Give me a tit job."

Mom didn’t hesitate, breaking away from Amy's hug and eagerly leaning over, her firm, perfect tits pressing against my length. She pressed herself around me, enveloping my length in her hot, soft pillows. She continued chatting with Amy about all the things they could do together now, my sister not noticing or caring about the tit job happening right in front of her. I groaned and leaned back, thrusting into my mother's firm cleavage, my hips jerking forward when my tip emerged from within her soft valley, Mom interrupting their conversation so she could lick it.

"Fuck," I gasped, my voice breaking as she increased the pace. "Just like that! oh God, Mom! YES!" I cried, humping into her cleavage. Mom moaned, the vibration sending waves of pleasure through my body, all while continuing to converse with Amy. I came again, my cum splashing forcefully across my mother's face and chest. Some hot streaks reached as far as Amy’s shoulder, but she didn’t react to my hot seed hitting her. Mom licked some of the cum off sensually, her tongue swirling around her lips, savoring the taste.

"You liked that?" she asked, her voice husky with need. "Fucking you mother's tits?" I just sat back and watched as my cum vanished off her skin, leaving her body perfectly clean, as if nothing had happened. The few stains on Amy's shirt also faded away. Mom sat back, giving me a lusty look, all while continuing to converse with Amy, eagerly planning a mother daughter shopping trip.

"Fuck yes," I replied, my voice rough with desire. "That was incredible."

"Do you want to use me more?" she asked, her voice low and sultry. "I would love it if you did, but I do need to get started on dinner soon."

"You're making dinner?" Amy asked, shocked. "It's been years."

"Yes, I'm making dinner. I know you two might find this hard to believe, but I've missed it. The cooking, the cleaning... all of it. For so long, I couldn't do much more than watch TV or read. Now I want to do everything. Cooking, cleaning, shopping, traveling... even with a milf in the house, there’s more to life than fucking,” she said, excitedly.

"Don't look at me. It was my turn to cook tonight; I'm not going to stop you from doing it," I joked.

"Did you only use me to get out of your chores?" Mom countered with an arch look, before both she and Amy broke out laughing.

"Well, if you're not using me right now, I'll get to it," she said, reaching down to pick up a few pieces of her dress. “You ripped my dress to shreds,” she complained, waving the torn cloth accusingly at me. "I don't mind cooking naked if that's how you want to use me, but otherwise I need to find some clothes."

“Sorry, I just couldn't wait," I replied. "I would love to see you cook naked too, but I wouldn't want you to get burned or anything." I thought for a minute, then figured I could just go for it. So far everything had worked out. "Ok, how about your dress just reassemble itself,” I said confidently. The scraps of fabric around us began to move, flying towards her hand, knitting themselves back together. The dress that began to retake shape was still the drab, formless things I had ripped off of her, and that wouldn't do. “It should be super sexy and fit you perfectly,” I added, watching the shape forming in her hands change.

As the dress finished re-knitting itself, Mom stepped into it, movements effortlessly fluid and sensual as she pulled it up, slowly covering her naked body with form-fitting cloth, the dress elegant and colorful in a way that accentuated her new milf body. She threaded both arms into the shoulders, her boobs settling heavily into the bust, the dress pushing them up and together to make a tantalizing chasm of cleavage. The fabric clung to her body in all the right places, highlighting her toned arms, her large, high, full breasts, her flat stomach, her wide hips, her round ass, the skirt sexily falling to mid thigh and showing of her smooth, muscular calves. She was a vision of sexiness, the silhouette emphasizing her new milf body in all the right ways.

"So," she said conversationally, her voice light and airy as if we hadn’t just been fucking like rabbits, "what do you two want for dinner?"

"Anything is fine," I said, my voice cracking as I gazed up at her perfect milf body. Amy just nodded in agreement, completely unaware of the sexual tension between us.

Mom executed a model turn, dress swirling up tantalizingly, and headed to the kitchen. Amy and I got up and followed Mom’s new pert ass.