I gently spread my stepmother's cheeks again. Her poor anus was red, swollen, and angry now. I slowly injected the entire liter of chilled milk deep inside.
Her belly swelled slightly, the coolness instantly soothing the burning pain.
"You disgusting bitch Linda!" my stepmother snapped the second the pain eased. "You dared push that shit back into my ass? Now choose: either suck all this milk out of my asshole and drink every single drop like the filthy toilet you are, or I'll pour the rest of this spicy hot-pot broth straight up your worthless ass so you can feel exactly what I just felt. Which is it?"
Mom went pale as death at the second option.
"Grandma Vivi… your filthy, slutty granddaughter Linda chooses the first one! Please, please don't give me the spicy enema!"
She scrambled forward on her knees, wrapped her arms around my stepmother's thighs, and sealed her lips desperately around that milky, swollen anus like a starving baby finally getting its bottle.
I lifted my stepmother up just enough, holding her like a parent helping a toddler pee.
Mom sucked and swallowed, sucked and swallowed, gulping down every last drop of cold, slightly shitty milk while tears of pure humiliation poured down her face.
When it was finally over, my stepmother sighed in deep relief, belly slightly bloated from the massive "meal."
"How is it, Stepmother? Does it feel much better now?" I asked softly while gently lowering her back onto the sofa. My cock was already fully hard again, thick veins pulsing with fresh excitement.
She gave me a slow, seductive smile and let her voice drop into a low, almost slutty purr. "It's much better… but deep inside my asshole still feels a little numb and tingly and itchy… what should I do about that, baby?" As she spoke, she turned slightly and swayed her plump, perfect buttocks right in front of me, slow and deliberate, making sure I could see every curve.
Before I could even answer, she reached back with one soft, warm hand and wrapped her fingers firmly around my throbbing cock. With her other hand she spread her own round cheeks wide, opening her tight pink anus for me like an invitation. Then she lowered herself down very slowly until the fat head of my cock pressed right against her cool, milky hole.
I gripped her hips and thrust upward in one strong, smooth motion. My full 18-centimeter cock slid all the way inside her tight, cool asshole until my balls pressed flat against her skin and I was buried to the hilt.
"Ahhh… oh fuck… so good… my sweet darling son, your cock is so thick and burning hot inside me… it feels exactly like a red-hot iron rod stretching my little asshole wide… ah… ah… ah…" she moaned loudly, her voice shaking with raw pleasure.
The moment I was completely inside, her rectum came alive around me. Every inch of her tender inner walls started squeezing and pulsing, gripping my shaft so hard it felt like hundreds of tiny, wet mouths were sucking and pulling on me all at once.
She was sitting fully on my lap now, so her feet dangled in the air, unable to touch the floor. At first she could only grind in small, teasing circles, rolling her hips slowly, making me feel every ripple inside her.
"Hmm… something's missing… I need something soft under my feet so I can really move…" she whispered with a wicked little smile.
Mom heard her instantly. She crawled forward on all fours, lay flat on her back right beneath my stepmother's dangling feet, and eagerly grabbed both of her ankles. She lifted her huge, heavy breasts up like perfect living cushions so my stepmother could plant her feet firmly on them.
The shadow bitch followed right behind Mom. She shoved her face greedily between my stepmother's thighs and started licking her swollen, dripping clit with long, hungry strokes of her tongue. At the same time she sat her full weight on Mom's belly and reached down between Mom's legs. She plunged her thumb deep into Mom's soaking pussy and shoved her index and middle fingers straight into Mom's still-gaping anus, twisting and pumping hard and fast. This was the revenge she had waited so long for.
Now everything was perfect. My stepmother had soft, springy support under her feet from Mom's incredibly elastic breasts and her own firm, bouncy ass cheeks. She started bouncing up and down on my cock with full power.
She lifted her hips high… then slammed back down hard.Lifted high again… slammed down even harder. "Slap! Slap! Slap! Slap! Slap!"
Every single drop made her ass cheeks crash loudly against my thighs.My cock plunged balls-deep into her tight asshole over and over. The wet, obscene spanking sounds filled the entire room.
Her asshole squeezed tighter and tighter with every bounce. Her round ass cheeks turned bright, glowing red from the constant hard impact. The ring of her anus pulled in and out around my shaft, gripping me harder each time she dropped.
I wrapped my arms tightly around her slender waist and pulled her body against mine. I pressed my cheek against her beautiful, flushed face. She turned her head and crushed her soft, fragrant red lips against mine. We kissed deep and hungry, tongues dancing and sliding together while she rode me harder and faster.
Her breathing turned into desperate little gasps.Her whole body started trembling. Her asshole clamped down like a burning hot vice.
We came at exactly the same second.
My cock throbbed and pulsed again and again, shooting thick, heavy ropes of hot cum deep into her rectum, filling her completely until I had nothing left to give.