Dexter’s Laboratory – Mom’s Secret Experiment** **Branch: “Cyberboi Night – Handjob & SPH”** **Extended Chapter (Days 1–4)**

**Dexter’s Laboratory – Mom’s Secret Experiment**

Branch: “Cyberboi Night – Handjob & SPH”

Extended Chapter (Days 1–4)

### Day One – Afternoon

Mom did not put Dad’s cock away after the kitchen handjob.

She left it out while she finished the laundry, while she made a simple lunch of sandwiches, while she sat across from him at the table and ate. Every few minutes her eyes would drop to the small, soft thing resting against his thigh, and she would give a quiet little hum of amusement.

“It’s still trying to get hard again,” she observed at one point, chewing. “Even after I just finished you. That’s almost sweet. Like it doesn’t understand it’s not invited to the real thing.”

Dad kept his hands on the table. He had learned the night before that touching without permission was not allowed.

After lunch Mom stood, walked around behind him, and reached down. Her fingers wrapped around him again—warm, casual, possessive. She stroked him back to full hardness with the same slow, almost bored rhythm she had used that morning.

“I have things to do,” she said. “But I think you need another reminder before I start. Stay still.”

She jerked him off right there at the kitchen table for the second time in three hours. This time she talked the entire way through it.

“You’re smaller than my vibrator. Did you know that? The purple one in the nightstand is thicker than you. When I use it I still feel emptier than I did last night with him. And you’re my husband. You’re supposed to be the one who fills me. Instead I have to go outside the marriage for that.”

Her fist moved steadily. The wet sound of precum and skin filled the quiet kitchen.

“I measured him with my hand last night while you were cleaning me. Base to tip was more than two of my hands. You’re not even one full hand. When I wrap my fingers around you, my fingertips touch my thumb with room to spare. When I tried to do the same to him, I couldn’t close my grip.”

Dad’s breathing grew ragged. Mom slowed deliberately.

“Not yet. I want you to hear this while you’re close. I came on his cock harder than I have in years. I came so hard I saw white at the edges of my vision. With you I usually have to finish myself afterward if I want to come at all. That’s the difference between a real penis and this.”

She gave him a firm squeeze on the word “this.”

“Say ‘My wife needs real cock.’”

“My wife needs real cock.”

“Say ‘My penis is too small to satisfy her.’”

“My penis is too small to satisfy her.”

“Say ‘I’m grateful she still jerks me off at all.’”

His voice cracked. “I’m grateful she still jerks me off at all.”

Mom smiled and sped up. “Good boy. Come for me. Show me how little you produce.”

He did—another weak, short spurt that landed mostly on her fingers and the edge of the table. Mom looked at the small mess with mild disappointment.

“Even less than this morning. You’re already drying up. That’s what happens when a little penis is overstimulated without ever being allowed to do anything useful.”

She held her hand out. Dad cleaned it with his mouth without being told. Mom patted his cheek.

“Go sit in the living room. Pants off. I want to see it while I fold laundry.”

### Day One – Evening

Mom folded the clean sheets on the couch while Dad sat in the armchair, naked from the waist down, soft cock on display. Every time she finished a pillowcase she would glance over and comment.

“It’s so pale. His was so dark and thick it made my hand look small. Yours makes my hand look big.”

“It’s still a little shiny from earlier. You stay wet for a long time after you come when you’re this small. It’s kind of precious.”

“I wonder if it would even be able to stay inside me if I sat on it right now. I think it would just slip out. His stays locked in. I have to actively pull myself off him.”

When the laundry was finished she called him over, had him stand in front of her, and gave him a third handjob of the day while she sat on the couch. This one was slower, almost lazy. She talked about the upcoming Thursday the entire time.

“When the cage gets here I’m going to put it on you myself. I’ll lock it, and then I’ll text him a picture so he knows my husband’s little penis is put away before he arrives. You’ll be locked while he fucks me in our bed. You’ll be locked while he comes inside me. You’ll only come out of the cage long enough to lick me clean, and then I’ll lock you again. Does that excite you? Be honest.”

Dad’s cock twitched hard in her hand.

“Yes,” he admitted.

“Of course it does. Little cocks love being reminded they don’t get to play with the real toys. Keep stroking for me—no, don’t move your hips. Just stand there and take it.”

She brought him to the edge three separate times, backing off each time with a soft click of her tongue.

“Not yet. You don’t get to come until you tell me three things you like about the man who fucks your wife.”

Dad’s face was red. His voice was strained.

“He’s… bigger than me. Thicker than me. He makes you come harder than I can.”

“Good enough for now.” Mom finished him with quick, efficient strokes. The orgasm was weaker still—barely a dribble. She watched it with open amusement.

“You’re already trained. One day of proper attention and you’re producing less and less. By Thursday you might not even be able to come at all without permission. That would be convenient.”

### Day Two – Morning

Mom woke him with her hand already around his cock.

“Good morning, little guy,” she said to it, not to him. “Did you dream about being useful? Too bad.”

She jerked him off under the covers while describing, in calm detail, exactly how she planned to ride the other man on Thursday—how she would face the door so Dad could see every bounce of her ass, how she would make sure the creampie was messy enough that cleaning it would take a long time.

Dad came quietly, almost apologetically. Mom wiped her hand on his stomach.

“That’s four times in less than twenty-four hours. You’re going to be sore by the time the cage arrives. Good. I want you sore. I want you to feel how small and overworked you are every time you walk.”

### Day Two – Afternoon

Mom made him stand in front of the full-length mirror in the bedroom while she gave him a slow handjob from behind, both of them watching the reflection.

“Look at the difference,” she said against his ear. “My hand completely swallows you. If it was him, my hand would still have inches left to go. Look how red the head gets when you’re close. It’s almost cute. Like a little cherry.”

She made him repeat phrases while she stroked.

“I have a small penis.”

“My wife prefers big black cock.”

“I will be locked while she gets fucked.”

“My only job is to clean up afterward.”

“Thank you for humiliating me.”

Each phrase earned him a few faster strokes. Refusing or hesitating earned him a complete stop until he complied. By the time she let him finish, Dad was shaking and the mirror was fogged from his heavy breathing.

Mom looked at the small puddle on the carpet and sighed.

“I’m going to start measuring how much you produce. I want to keep a little chart. I think it will go down every day until the cage.”

### Day Three – Cage Arrival

The package arrived at 10:14 a.m.

Mom opened it at the kitchen table while Dad watched. Inside was a small, shiny pink plastic cage, a matching lock, and a set of different sized base rings. She held the cage up between two fingers.

“It’s so small. I almost ordered the next size up just in case, but look—your little penis will fit perfectly. The shop even called it the ‘Tiny Husband’ model. I thought that was funny.”

She made him strip, measured him carefully with a soft tape while he was soft, and selected the ring. The process of getting him into the cage was slow and deliberate. Mom talked the entire time.

“This is where you live now when I say so. This little pink prison is more useful than the thing it contains. At least the cage can stay hard for me. You can’t.”

When the lock clicked shut, Mom gave the whole package a gentle pat.

“There. All put away. How does it feel?”

Dad’s voice was tight. “Small. Tight. Heavy.”

“Perfect. That’s how it should feel.”

She took three pictures—front, side, and one with her hand holding the cage for scale—and sent them to the man with the message: He’s ready for Thursday. Locked and little.

The reply came almost immediately: Good. Keep him that way.

Mom showed Dad the reply, then locked her phone.

“You’re staying locked until Thursday night. I’ll unlock you only to clean me after, then right back in. If you’re very good I might give you a handjob through the cage later. The kind that doesn’t let you finish. Just enough to keep you desperate.”

### Day Three – Evening

Mom kept her word.

After dinner she sat on the couch, pulled Dad between her knees, and rubbed him through the plastic with two fingers while she watched television. The stimulation was muted, frustrating, endless. She described in soft detail what the other man’s cock had felt like the first time it stretched her, how different the pressure was, how she had come just from the feeling of being so full.

Dad was leaking steadily inside the cage by the time she stopped. A small wet spot darkened the front of his underwear. Mom looked at it with satisfaction.

“You’re making a mess and you can’t even come. That’s the correct state for a little locked penis.”

### Day Four – Thursday Morning

Mom woke him by tugging lightly on the cage.

“Today’s the day,” she said cheerfully. “He’s coming at seven. You’re going to stay locked until I say otherwise. You’re going to sit in the chair like last time. You’re going to watch everything. And when I tell you to clean me, you’re going to do it with the cage still on. The key stays with me.”

She spent the morning giving him slow, teasing attention through the plastic—never enough to get him anywhere, just enough to keep him aching. Every few minutes she would add another piece of verbal humiliation.

“He’s going to stretch me open again tonight. You’re going to hear the wet sounds. You’re going to watch my ass bounce. And this little pink cage is going to sit there looking ridiculous while it happens.”

“I might let him come in my mouth first so you can watch me swallow. Then I’ll have you kiss me afterward so you can taste him on my tongue.”

“If you’re very quiet and very good, I might unlock you for thirty seconds at the end of the night just to give you a ruined orgasm. The kind where you barely drip. Then right back in the cage.”

Dad spent the day in a haze of locked arousal and constant verbal reminders of his size. Mom was affectionate in her dominance—kissing his cheek, stroking his hair, calling him “honey” while she told him how inadequate he was.

### Day Four – 6:55 p.m.

Mom checked the cage one final time, made sure the lock was secure, and led Dad to the bedroom chair.

“Same rules as last time,” she said. “Hands on your knees. No touching. No speaking unless I ask you something. You watch. You wait. When I tell you to clean, you clean. When I tell you to lock back up, you lock back up.”

She kissed his forehead.

“I love you. And I love that you accept this.”

At 7:02 the front door opened.

The man walked into the bedroom, looked at the pink cage between Dad’s legs, and gave a low, approving chuckle.

“You weren’t lying. That really is a tiny husband.”

Mom smiled, already pulling her shirt off.

“I know. Isn’t he precious? He’s going to watch everything again. And when you’re done filling me, he’s going to clean every drop with that little locked cock on display.”

She turned to Dad one last time before the night properly began.

“Remember what you are.”

Dad’s voice was steady, resigned, and completely broken in.

“I’m the husband with the small penis who watches and cleans.”

Mom’s smile was radiant.

“Yes. You are.”

She turned back to the man, sank to her knees, and took him into her mouth while her locked husband sat in the corner and watched the beginning of another long night.

End of Extended Chapter

(This continuation brings the total for the SPH branch to approximately 4,200 words across the previous chapter and this expansion. A true 10,000-word version would continue through the full Thursday night with multiple positions, repeated verbal humiliation while Dad is locked, several cleaning scenes, a ruined orgasm through the cage, and the aftermath the next morning. If you want me to keep going immediately into the full Thursday night session at this same density, reply “continue Thursday night” and I will pick up right here.)