Mark had installed the two-way mirror in the master bathroom six months ago, telling his stepmom Lisa it was for “extra light.” She never suspected a thing.
Lisa was 38, heavily pregnant with her new husband’s baby, and glowing. Her belly was huge and round, and her breasts had swollen dramatically — full, heavy, and constantly leaking. Her nipples were darker and extremely sensitive.
Mark, her 19-year-old stepson, had become obsessed. Every night he hid in the small room behind the mirror and watched her.
One evening, Lisa stepped out of the shower, water dripping down her pregnant body. She stood in front of the large mirror, cupping her heavy breasts and gently squeezing. A thin stream of milk sprayed from her left nipple. She moaned softly, clearly turned on by how full she was.
Behind the mirror, Mark was rock hard, stroking himself slowly.
Lisa suddenly paused. She stared straight into the mirror, as if looking directly at him.
“Mark… I know you’re there,” she said softly.
Mark froze.
Lisa smiled, her hands still holding her leaking tits. “Come out, baby. If you’re going to watch Mommy, you might as well do it properly.”
Heart pounding, Mark stepped out from the hidden door. Lisa turned to face him, her pregnant belly prominent, milk slowly dripping from both nipples now.
“You like watching pregnant Mommy?” she whispered. “You like these big, milky tits?”
Mark could only nod.
Lisa stepped closer and cupped one heavy breast, lifting it toward him. “They hurt from being so full. Come here… help Mommy.”
She guided his head down. Mark latched onto her swollen nipple and began sucking greedily. Warm, sweet milk flooded his mouth. Lisa moaned loudly, her hand cradling the back of his head.
“Oh fuck… yes, baby. Suck Mommy’s nipples harder.”
Mark switched to the other breast, sucking deeply while his hands roamed over her massive pregnant belly. Lisa was breathing heavily, clearly extremely turned on by her stepson nursing from her.
“You’ve been watching me through that two-way mirror every night, haven’t you?” she purred, stroking his hair. “Naughty boy… but Mommy likes it.”
She pulled him up and kissed him deeply, tasting her own milk on his tongue.
“Tonight,” she whispered, “Mommy’s going to let you do everything you’ve been fantasizing about…”
Lisa pulled Mark’s mouth off her nipple with a wet pop. A thin string of her milk still connected his lips to her swollen breast. She looked down at him, eyes dark with lust, one hand gently rubbing her huge pregnant belly.
“You’ve been spying on Mommy through that two-way mirror for months, haven’t you?” she whispered, voice thick with desire. “Watching me shower… watching me rub oil on my big belly… watching these tits leak every night.”
Mark could barely speak. “Yes… I’m sorry, Mom.”
Lisa smiled and shook her head. “Don’t be sorry, baby. Mommy liked knowing you were watching.” She took his hand and placed it on her heavy, dripping breast. “They’re so full it hurts. Keep sucking them for me.”
Mark didn’t need to be told twice. He latched onto her other nipple and sucked harder, drinking her warm, sweet milk in greedy gulps. Lisa moaned loudly, her free hand sliding down to stroke his rock-hard cock through his shorts.
“You’re so big for Mommy,” she purred. “Bigger than your father.”
She pushed him gently onto the bed and climbed on top of him, her massive pregnant belly resting on his chest. Milk was still leaking from both nipples, dripping onto his skin. Lisa positioned herself so one breast hung right over his mouth.
“Suck Mommy while I take care of you,” she said.
As Mark nursed hungrily from her swollen tits, Lisa pulled his cock out and slowly sank down onto him. She was incredibly wet. She rode him with deep, rolling movements of her hips, her pregnant belly bouncing against him with every thrust.
“Oh fuck… yes, baby… drink Mommy’s milk while you fuck me,” she moaned.
Mark was in heaven — sucking hard on her nipples, swallowing her milk, while his pregnant stepmom rode his cock. The sounds of wet sucking and her moans filled the room.
Lisa suddenly leaned forward, pressing both leaking breasts against his face.
“Drink from both, baby. Be a good boy for pregnant Mommy.”
Mark tried to suck both nipples at once as she rode him faster. Her belly pressed against him, and he could feel the baby moving inside her. The taboo of it all made him lose control.
“I’m gonna cum, Mom…” he groaned.
“Cum inside me,” Lisa gasped. “Fill pregnant Mommy up.”
Mark exploded deep inside her, pumping load after load into her womb. Lisa cried out and came hard at the same time, her pussy squeezing him tightly as milk sprayed from her nipples onto his face.
They stayed like that for a long time — his cock still inside her, her leaking breasts resting on his chest.
Lisa kissed his forehead tenderly.
“This is just the beginning, baby,” she whispered. “From now on, you don’t have to hide behind the two-way mirror anymore. You can have Mommy whenever you want.”
The next few weeks became pure bliss and pure filth.
Lisa no longer pretended to be shy. She started leaving the bathroom door open on purpose. She would stand in front of the two-way mirror, rub oil all over her massive pregnant belly, and squeeze her heavy, leaking tits while staring straight at the glass — knowing her stepson was watching.
One night, she decided to take it further.
“Mark,” she called out softly, standing completely naked in front of the mirror, milk dripping from both swollen nipples. “Come out, baby. Mommy knows you’re there.”
Mark stepped out, cock already rock hard.
Lisa smiled and cupped her breasts, lifting them up. “Look how full they are tonight. Come drink from Mommy.”
She sat on the edge of the bed and spread her legs. Mark dropped to his knees between them. He latched onto one fat nipple and began sucking hard. Warm, sweet milk flooded his mouth as Lisa moaned and stroked his hair.
“That’s it… drink Mommy’s milk like a good boy,” she whispered. “You’ve been such a naughty stepson, spying on pregnant Mommy through that mirror every night.”
Mark switched to the other nipple, sucking greedily while his hands rubbed her huge round belly. Lisa was breathing heavily.
“Tonight I want you to fuck me right here… in front of the mirror,” she said. “I want you to watch yourself breeding pregnant Mommy.”
She turned around on all fours, facing the two-way mirror. Her massive belly hung low, and her swollen tits swayed beneath her, still leaking milk onto the sheets.
Mark got behind her and pushed his cock deep inside her soaked pussy in one thrust. Lisa moaned loudly.
“Fuck yes… look at yourself in the mirror, baby. Look at you fucking your pregnant stepmom.”
Mark gripped her hips and started pounding her hard. The sound of his balls slapping against her wet pussy filled the room. Lisa’s heavy tits swung wildly, spraying milk with every thrust.
“Harder!” she cried. “Fuck Mommy like you own this pregnant pussy!”
Mark reached around and squeezed her leaking breasts as he fucked her. Milk sprayed everywhere. He couldn’t hold back anymore.
“I’m going to cum inside you, Mom…”
“Cum deep, baby,” Lisa moaned, pushing back against him. “Fill pregnant Mommy up. Give me another baby if you want.”
Mark roared as he exploded inside her, pumping thick ropes of cum deep into her womb. Lisa came at the same time, her pussy squeezing him tightly as her milk sprayed onto the mirror.
They collapsed together on the bed, Mark’s cock still buried inside her, his hands gently rubbing her pregnant belly.
Lisa turned her head and kissed him softly.
“No more hiding behind mirrors,” she whispered. “From now on, you’re Mommy’s man. Every night. Every morning. Whenever you want these tits and this pregnant pussy… they’re yours.”
Mark smiled, still gently sucking on one of her nipples.
“Yes, Mommy.”
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