Though her words carried a tone of feigned reproach, her face betrayed an expression of pure, blissful pleasure.
"Mother-in-law, who could blame me when your bottom is so incredibly beautiful? I've been longing to touch it like this for the longest time. Just let me enjoy it to my heart's content!"
As he gently kneaded her plump, rounded buttocks, the son-in-law whispered into her ear with a playful, coaxing tone.
"You little rascal! I'm your mother-in-law—how dare you touch my backside? Have you no shame toward my daughter?"
She leaned in so close that her lips brushed against his ear as she spoke.
Feeling her breath—which sent shivers of desire through him—he squeezed her buttocks even harder, pressing down with such force that her ample curves were completely reshaped under his grip.
"My dear mother-in-law, you're just so beautiful and alluring—how could I possibly resist? If you don't let me touch you, I'll have no choice but to take it out on your daughter!"
He teased her with a wicked grin, his words serving as a playful "threat."
"You little scoundrel, using my own daughter to threaten me! Well, I suppose I have no choice but to give in—after all, I do love my daughter so much! Ah—take it easy! You're hurting me. If you keep hurting me, I won't let you touch me anymore!"
She shot him a sharp, feigned glare.
Hearing her "threat," he offered a mischievous smile and whispered into her ear, "Tell me, my dear mother-in-law—would you like to become a man again?"
He fixed his gaze upon her, a devious smirk playing on his lips.
"I would! Of course I would!"
She looked at him, her face filled with eager anticipation.
"Well, I happen to have an antidote that can restore you! But there's a catch: it won't just turn you back into a man—it will grant you the ability to shift freely between being a man and a woman!"
He said, watching her intently. "Give it to me, give it to me! My dear son-in-law, hurry up and hand over the antidote!"
"Heh! It's not impossible to get the antidote—but remember, Tianxiang had to offer up both his wife and himself to obtain it! What, then, are *you* prepared to give your son-in-law?"
Seeing the burning lust in her son-in-law's eyes, she gave him a coquettish smile, then stripped off all her clothes right there on the mountain steps, revealing her flawless body.
As he took in her beautiful, ample breasts, slender waist, and alluring, curvaceous buttocks, he swallowed hard, his throat bobbing.
"My dear son-in-law, just give me the antidote, and I'll do anything you ask."
She said this without a moment's hesitation.
"Heh! Alright, then! How about this: crawl up the mountain on your hands and knees—completely bare-bottomed! Oh, and one more thing—make sure to stick your backside high in the air and shake it vigorously as you climb!"
He said, a lewd grin spreading across his face.
After he spoke, she shot him a playful, feigned glare and chided, "You naughty boy—to think you'd bully me like this!"
Though she complained, she immediately obeyed his command.
Planting her hands on the stone steps, she began to crawl upward, one step at a time.
As she climbed, she swayed her voluptuous, shapely bottom in a brazen, seductive manner, letting her son-in-law—who followed close behind—take it all in.
Fixated on her alluring, provocative backside, he reached out and touched it; the exquisite sensation was so intoxicating that he couldn't help but begin to knead and squeeze it firmly. "You slutty mother-in-law—with that big, juicy ass! It feels absolutely amazing to touch! I'm definitely going to be grabbing it all the time from now on!"
The son-in-law shouted out loud.
"Mmm! That's a good boy! If you like touching it, then go ahead—squeeze it hard, knead it all you want! This big ass of mine is meant for my dear son-in-law to play with!"
*Smack!* A bright red handprint instantly appeared on her backside.
Watching her large, fleshy bottom quiver violently from the impact, the son-in-law grinned with satisfaction.
He said, brimming with excitement, "Wow, smacking your ass feels incredible! It's even better than hitting my own mother's!"
"Well, of course! I'm a master at the peak of the Innate realm. Aside from Black-Feather Phoenix and your other mother-in-law, who else in this world could possibly have a body that feels as good as mine?"
She said this with a proud flourish, swaying her voluptuous, heavy backside in a provocative, circular motion.
Seeing her lewdly swaying, ample rear, the son-in-law planted a firm kick right onto it. With a loud thud, Mother's beautiful body collapsed onto the stone steps. Her son-in-law immediately planted his foot firmly onto her plump, rounded buttocks. With an expression of intense excitement, he declared, "At the peak of the Xiantian realm, are you? Is that supposed to be impressive? Look at you now—bare-assed and pinned beneath my boot! My beautiful, powerful mother-in-law, swear it! Swear it loudly: you are to be my bitch for the rest of your life—to be used however I please, fucked however I desire! You will satisfy every one of my cravings with your slutty cunt and your asshole!"
"Yes! I, Long Cangtian, hereby swear to be my dear son-in-law's bitch for the rest of my life! He may use me however he wishes, fuck me however he desires! I shall satisfy all his cravings with my slutty cunt and my asshole!"
Pinned beneath her son-in-law's foot, Mother proclaimed her oath aloud.
Upon hearing this, the son-in-law, overcome with excitement, stripped off his clothes and pressed his body down onto hers—a body as beautiful as it was seductive.
He drove his thick cock straight into her slutty cunt and began to fuck her with ferocious intensity.
*Smack, smack, smack, smack...* The sharp, rhythmic sounds of flesh colliding echoed across the stone steps leading up the mountain.
"Oh—my bitch of a mother-in-law, your cunt is truly something else! As expected of a slutty cunt at the peak of the Xiantian realm—fucking you feels so much better than fucking your daughter's dark, hairy cunt! Ah—so tight, so incredible! A cunt this good—I could fuck it for a lifetime and never get enough!"
As he thrust into her—a cunt as soft and delicate as a young maiden's—the son-in-law shouted out in a frenzy of pleasure. "Oh, my master-son-in-law! If it feels good... then... fuck me hard! Your bitch of a mother-in-law... loves it when you... fuck her with your big cock! Fuck me hard, ravage me! It doesn't matter if you... knock me up—your bitch of a mother-in-law... *wants* you to get her pregnant! She wants to bear... a bastard for her... wonderful son-in-law!"
Mother cried out in a lewd, high-pitched voice.