...Her body started to change.

With her cock still buried deep inside her daughter, hips bucking uncontrollably, Monica could feel the intense, focused feeling in her crotch spread through her whole body. Monica's eyelids fluttered, mouth hanging slack, when she felt an incredible tightness building in her breasts, not entirely unlike that she felt at the base of her cock just before an orgasm - or rather, right now. But instead of spurting fluids, they seemed to... grow heavier?!

Her eyes snapping open, she looked down her body, and indeed: With every heaving, gasping breath, her breasts jiggled more and more. Where before, she had barely had Bs, Monica was now quickly nearing C-cups. Letting go of Addie's hips, she grabbed one swelling tit in each hand and began playing with her bust. Massaging the expanding flesh, rolling her nipples between her fingers, Monica's cock was almost forgotten.

Not by Addie, of course. Her own climax had ebbed, but the feeling of her mother's dick twitching and churning her pussy, the head bloating up fiercely, was still very much exquisite. As was the view from where she was lying: The picture of her mother, lost to pleasure and playing with her slowly growing breasts, would stay with her forever. But Addie could also see much more was changing: The small crow's feet in the corners of Monica's eyes were slowly smoothing out. The grey streaks in her auburn hair disappeared strand by strand. Across Monica's whole body, the ravages of time were reverted throughout the longest orgasm she'd ever experienced.

Addie felt tears of joy well up in her eyes - her mother had always made lighthearted comments about the signs of her ageing, but even as mostly oblivious Adam she had been able to tell that the gradual loss of her youth had been getting to Monica. Seeing the years fall away now made Addie's heart flutter. Clasping her hands over her heart, arms squishing her tits, Addie's vision blurred and she felt the happy tears running down her cheeks. The pills were a blessing! Never would Addie have imagined to feel this happy for another person.

Finally, the incredible bliss racing through Monica's body subsided and she nearly collapsed onto Addie as her muscles suddenly slackened, her arms falling to her sides. Her daughter took advantage of the sudden closeness and pulled Monica into a tight hug, smiling wide through her tears.

"Oh god, mom! It's amazing, you look so young!" Addie squealed, feeling their breasts smoosh into each other. Monica had to be almost as big as her now!

Breathing heavily, her mother took some time to reply: "I... Incredible... All over my body..."

"Yes! I think you just got 10 years back! At least!"

"You... you're joking. Don't tease me, young woman!" Monica admonished, trying to ignore the sensations from her crotch - she was still achingly hard, her cock drooling pre into Addie's tight pussy.

The absurd situation was not lost on Addie, of course. Grinning, she caressed her mother's face, letting her fingers run over the rejuvenated skin.

"No-Ah! Really. Don't you...mmmmh, feel it?" Addie moaned as the blissful sensations radiating out from her pussy reasserted themselves with a vengeance.

Monica did indeed. Looking at her hands, she marveled at how smooth and youthful the skin looked. The last time she had looked like this she'd been...

"Aaaoooh god!" Monica groaned as Addie interrupted her thoughts by flexing her abdominal muscles to clamp down around her mother's cock.

Gyrating her hips around Monica's enormous rod, Addie grinned at her mischievously and said: "As amazing as this... mmmh, is, we still have to finish something here. Let's turn around, I want to ride you."

Addie's playful smile was contagious, and her offer irresistible. Sliding out of her daughter, Monica's engorged cock-head left Addie's tight cunt with a lewd 'pop', prompting a partly lustful, partly disappointed moan from the younger woman. Monica climbed on the bed, her muscles shaking a little from the draining experience she had had, and flopped onto her back, tits jiggling wildly and finally settling much higher than Monica was used to.

"Mmmh, look at that dick," Addie said appreciatively, dragging one finger along its underside and making Monica moan with the delicate touch, "it's standing up so straight!"

With that, she straddled her mother and used one hand to line up her swollen labia with the throbbing meat. Fixing Monica with her lustful gaze, biting her lower lip, she slowly lowered her expansive thighs down, a deep, throaty moan escaping from her throat as the girthy monster gradually split her open.

"Aaannnh, it's so deep," Addie gasped, touching her stomach just below the belly button, "I can feel it in there..."

Monica touched Addie's hand with her own, looking up at her daughter lovingly. Her little girl was so beautiful... so caring... and her pussy was so tight...

"I love you, Addie," Monica said, voice laden with emotion.

"I--nnnfffh, I love you too, mom," Addie breathed, intertwined her fingers with her mother's and began moving her baby-bearing hips, letting Monica's cock slide out partway, only to slam back down, the spongy helmet poking against her cervix. Her soft ass and thighs jiggled fiercely every time they slapped into Monica's crotch and upper legs.

"Ah! Your dick is--Mfh! Incredible! Yes!" Addie squealed, grinding her crotch into her mother's to **** the older woman's cock as deep inside herself as it would go.

"Ngooooh,baby, you're so--Agh! So tight!" Monica returned the compliment and grabbed Addie's other hand, palms together and fingers intertwined. Her lover used both hands to stabilize herself and speed up her movements, loud slapping sounds filling the room as Addie drove Monica's dick into her cunt with the frenzied bucking of her hips.

"I love you!" Slap. "I love you!" Slap. "I love you! I love you! I love you!" Slap slap slap.

Every time her mother bottomed out to the hilt, Addie gasped the three little worlds that made the older woman the happiest mother in the world. Now it was Monica's turn to tear up with joy. Her heart sang, and her hips bucked into Addie. Monica wasn't sure how long she would be able to hold out, but Addie's strength left her just before her mother reached the point of no return and the younger woman began gyrating her hips in small circles around Monica's twitching cock who took that as her cue.

"Are you ready, sweetie?" she asked mischievously, smiling playfully at Addie,

"Ready for wh--oooaaaah!" Addie half-moaned, half-whooped as Monica began using the springy mattress to bounce her daughter up and down on her cock. The movement was barely controllable, so she fell forwards into her mother's now much bigger and oh so soft boobs, fingers still entangled with her mother's. The angle of her mother's thrusting made Monica's cock rub against the back wall of Addie's pussy, her legs twitching every time it started sliding out again.

"Ah! Ngh! God, so big! Don't stop, fuck me harder!"

"You want it, baby? You want mommy's hard, throbbing cock?"

"Oh, yes! Give it to me, give it! to! ME!" Addie gasped as she began moving her hips to meet her mother's thrusting, the dirty talk driving both women wild with desire. Mashing their lips together, both moaned and gasped into each other's mouth, their tongues sliding over each other. Their frenzied coupling made the bed wobble and creak, the room reeking of their combined juices. The **** on all senses only heightened their arousal.

"God, sweetie, mommy is so close," Monica gasped, "I'm cumming soon!"

"Aannh, yes! Give it to me, cum inside!" Addie howled with pleasure, "Creampie me!"

And with one last, **** thrust, Monica planted her seed, unloading deep inside of her daughter, hips twitching uncontrollably.

"Nhaaah, yes!," Addie squealed loudly, "Fill me UP!"

"Take it, baby, take it all!"

With every forceful jerking of her hips, more and more jizz spilled out of Monica's hugely swollen dick, blasting into Addie's deepest parts, the feeling of hot sperm flowing into her making her shudder in bliss. After what seemed like an eternity, the spurts finally diminished and stopped. Addie rolled off of her mother without letting go of her left hand, Monica's cock sliding out of her. Without anything holding it back, Addie felt hot spunk begin to ooze out of her, but even with the small puddle forming under her, Addie still thought she could hear her mother's seed sloshing around inside of her womb. Putting a hand on her belly, she could feel it had swollen a little from all the cum Monica had pumped into her; Addie began to imagine it swelling even more, from the flat stomach to a huge, pregnant ball; new life growing within her, created by her and her mother... a warm fuzzy feeling filled her, and she turned to smile contentedly at her mother, who was looking at her lovingly.

"What are you thinking about, sweetie?" she whispered, squeezing Addie's hand.

"Just... what it would be like to... be a mom."

"If your daughter is half as amazing as you, you'd make me a happy grandma."

And with that, they drifted off into a nap, exhausted but content.