Haruto lay on his narrow bed staring at the water-stained ceiling, one arm flung over his eyes, the other still loosely draped around Aiko's waist. She was sprawled half on top of him, cheek pressed to his chest, one leg hooked possessively over his thigh. Her breathing had finally slowed from frantic gasps to soft, contented sighs. Every few minutes she'd nuzzle closer, murmuring something incoherent that sounded suspiciously like "mine" or "more milk later."
The room smelled like sex, spilled milk, and the faint citrus of Aiko's body wash. The empty carton lay abandoned on the floor like a crime scene exhibit. Haruto's phone buzzed once on the nightstand—probably a low-battery warning—but he ignored it. Moving felt like a distant, theoretical concept right now.
The blue screen flickered back into existence, floating serenely above them.
**[Post-Session Summary]**
**[User: Haruto Tanaka – Level 2 – Apprentice Milker]**
**[Stamina Recovery: 100% (Enhanced Recovery passive active)]**
**[Bonded Target: Aiko Hayashi – Tier S]**
**[Current Effects on Target: Permanent breast expansion (E–F cup range), hyper-sensitivity, lowered lactation threshold, obsessive attachment, secondary milk-craving loop established.]**
**[Global Notification: Milk Aura radius increased to 7 meters. Thirst probability for nearby females: +22%.]**
**[New Achievement Unlocked: First Harem Member – "Got Milk?"]**
**[Reward: Minor Upgrade Point ×1 – Allocatable at next level-up.]**
Haruto groaned quietly. "This thing is narrating my sex life now. Great."
Aiko stirred, lifting her head. Her dark hair was a glorious mess, strands plastered to her damp forehead. Her lips were still swollen from kissing, and—oh god—there was a tiny bead of milk still clinging to one nipple. She caught him staring and smirked.
"Like what you see?" She arched her back deliberately, making her heavy breasts sway. A fresh droplet slid free and trailed down the underside of one curve. "They're still leaking a little. Every time I think about you, it gets worse."
She sat up slowly, straddling his hips again. The movement made her slick folds brush against his softening cock, sending a lazy aftershock through both of them. Haruto hissed.
"Aiko… we just… like, five minutes ago…"
"Sixteen minutes," she corrected, glancing at his phone. "And I'm still burning up. This—" she gestured at her transformed body "—feels like it's on a hair trigger. One look at you and I'm dripping again."
She rocked gently, more teasing than demanding this time. Her hands roamed her own chest, cupping the swollen weight, thumbs circling her nipples until they stiffened anew. A thin stream of milk trickled out; she caught it on her finger and brought it to her lips, tasting herself with a soft hum.
"Sweet," she murmured. "Tastes like you."
Haruto's cock twitched against her thigh despite his exhaustion. The system pinged helpfully:
**[Secondary Arousal Trigger Detected – Target self-stimulation increasing User arousal by 140%. Proceed with caution.]**
"Caution my ass," Haruto muttered.
A sharp knock rattled the thin apartment door.
Both of them froze.
"Tanaka-kun?" came a voice—mature, polite, and unmistakably female. "It's Mrs. Sato. I brought your mail. And… I smelled something strange from the hallway. Is everything alright in there?"
Mrs. Sato was the building's landlady. Mid-forties, widowed, always wore flowery aprons and smiled like she knew every secret in the building but would never tell. She was kind. She was also suspiciously good at showing up exactly when rent was due—or when something interesting was happening.
Aiko's eyes widened. Then narrowed with something dangerously close to mischief.
"Don't move," she whispered, sliding off Haruto and grabbing his discarded T-shirt. She pulled it on; it barely reached mid-thigh on her, the hem riding up to expose the lower curve of her ass. The fabric stretched obscenely across her chest, nipples poking through like they were trying to escape.
"Aiko—no—"
She was already padding barefoot to the door.
Haruto scrambled for his boxers, yanking them on just as Aiko cracked the door open—only a few inches, body angled to hide most of the room.
"Hi, Mrs. Sato~" Aiko's voice was suddenly sweet and breathy. "Haru's just… resting. Long day."
Mrs. Sato's voice came closer. "Oh, Aiko-chan. I didn't know you were here. I thought I heard… noises."
Aiko laughed—light, tinkling, completely fake. "We were just watching a movie. Really loud action scene."
There was a pause.
Then Mrs. Sato sniffed the air. "It smells like… milk. And something else. Did you spill something?"
Aiko leaned forward just enough that the door opened another inch. Haruto could see the landlady now—short, curvy, dark hair pinned up, wearing her usual pink apron over a simple blouse and skirt. She held a small stack of envelopes and junk flyers.
Before Haruto could do anything, Aiko reached back, grabbed the half-empty water bottle from his desk (the one she'd claimed to need earlier), and—without breaking eye contact with Mrs. Sato—tilted it so a few drops of the remaining milk inside splashed onto her own collarbone.
The droplets slid down, soaking into the borrowed T-shirt, making the fabric cling transparently to her skin.
Mrs. Sato's gaze followed the trail automatically.
Then her pupils dilated.
The system chimed—louder, almost gleeful.
**[Passive: Milk Aura – Proximity Alert]**
**[Secondary Target in range: Sato Reiko]**
**[Current Thirst Probability: 68% → 89% (amplified by visible milk residue + scent carryover)]**
**[Warning: Unconsumed milk residue on bonded target is triggering external craving cascade.]**
Mrs. Sato swallowed visibly.
"I… I should go," she said, but she didn't move. Her fingers tightened on the mail. "You two… take care."
Aiko smiled sweetly. "Actually, Mrs. Sato… would you like some milk? We have a little left. It's really good. Fresh."
She stepped back, pulling the door wider.
Haruto's heart stopped.
Mrs. Sato hesitated—then stepped inside.
The door clicked shut behind her.
She stood there, clutching the envelopes like a shield, eyes flicking between Aiko's barely-covered body and Haruto (who was sitting on the bed in nothing but boxers, trying to look like this was a normal Thursday).
"I really shouldn't…" Mrs. Sato began.
Aiko walked over to the counter, picked up the empty carton, shook out the last few drops into a clean glass from the drying rack, and held it out.
"Just a sip," Aiko coaxed. "It'll help with that thirst you're feeling."
Mrs. Sato's hand trembled as she took the glass.
She brought it to her lips.
One sip.
Then another.
Then she drained it in three gulps, a thin line of white running down her chin.
Her eyes fluttered shut.
When they opened again, they were glassy.
The system exploded with notifications.
**[Secondary Target Acquired: Sato Reiko]**
**[Milk Consumption: 45 ml (Trace potency – First contact)]**
**[Applying Upgrades…]**
**[Breast Tissue Expansion: +90–120% projected | Ongoing]**
**[Sensitivity Multiplier: ×3.2 | Permanent]**
**[Libido Surge: Moderate → Severe]**
**[Attachment Vector: User-directed (weaker than Tier S but rising)]**
**[Lactation Threshold: Lowered by 60% | Active in 2–5 minutes]**
Mrs. Sato gasped, one hand flying to her chest.
Her blouse—simple white cotton—began to tent outward. Buttons strained. Her modest C-cups pushed forward, growing steadily, rounding out into full, heavy DDs that strained the fabric to near-transparency. Her bra underneath snapped audibly; one strap slipped down her shoulder.
She moaned—low, throaty, nothing like her usual polite tone.
"Oh… oh my…"
Aiko stepped behind her, hands sliding up to cup the swelling breasts through the blouse. Mrs. Sato arched back into the touch with a whimper.
"So sensitive already," Aiko purred. "Wait till they start leaking."
Mrs. Sato's knees buckled. Haruto lunged forward and caught her before she hit the floor, guiding her to sit on the edge of the bed.
Her skirt had ridden up, exposing thick thighs and plain white panties already darkening at the crotch.
She looked up at Haruto with wide, pleading eyes.
"Tanaka-kun… I don't understand… but I need… something…"
Aiko knelt between her legs, pushing the skirt higher. "Let me help."
She tugged the panties aside. Mrs. Sato was soaked—glistening, swollen, clit visibly throbbing.
Aiko leaned in and dragged her tongue along the length of her slit in one slow, deliberate stroke.
Mrs. Sato cried out, hands flying to Aiko's hair.
Haruto watched, frozen, cock hardening again despite everything.
The system pinged:
**[Group Interaction Detected – Multi-Target Bonding Opportunity]**
**[Bonus: Shared milk residue accelerating upgrades across all participants.]**
Aiko pulled back just long enough to look at Haruto. "Don't just watch. She needs you too."
Mrs. Sato reached for him blindly. "Please… Tanaka-kun…"
He moved on autopilot.
He knelt beside her, capturing her mouth in a kiss. She tasted like milk and desperation. Her tongue was eager, clumsy with need. While they kissed, Aiko worked—fingers circling, tongue flicking, until Mrs. Sato was writhing, hips bucking.
When Aiko sucked her clit hard, Mrs. Sato came with a muffled scream against Haruto's mouth. Her body shook; a gush of wetness coated Aiko's chin.
But she wasn't done.
Her blouse was soaked now—not just from sweat. Dark patches bloomed over each nipple as lactation kicked in.
Aiko pulled the fabric open—buttons popping—and latched onto one leaking breast.
Mrs. Sato keened.
Haruto took the other.
They drank from her together—warm, sweet streams flooding their mouths. Mrs. Sato sobbed with pleasure, hands in their hair, holding them there.
When they finally pulled back, lips shiny with milk, Mrs. Sato looked dazed, blissful.
"I… I've never…"
Aiko kissed her softly. "Welcome to the club."
Haruto sat back, head spinning.
The system chimed one last time for the night.
**[Milking Session (Group) Complete]**
**[User Level Up: Level 3 – Journeyman Milker]**
**[New Skill Unlocked: Milk Transfer – Can channel upgrades to bonded targets via direct fluid exchange.]**
**[Harem Count: 2 / ?]**
**[Aura Radius: 10 meters. Thirst probability nearby females: +35%.]**
**[Warning: Exponential growth detected. Containment recommended.]**
Mrs. Sato curled against Haruto's side, still trembling.
Aiko snuggled in on the other side, one hand lazily stroking his chest.
"So," Aiko whispered, voice sleepy and satisfied. "Who's next?"
Haruto stared at the ceiling again.
Somewhere in the building, another door creaked open.
He had a very bad feeling the milk in his fridge wasn't going to stay lonely for long.
To be continued in Chapter 3: Triple Cream
(End of Chapter 2)