Somehow, you must've zigged and Mom must've zagged. Your little penis moved away from Mom's collection cup and spurted its white sticky juice on the floor. Mom looked at you, stern and disappointed.
"Oh. Seems you've made a mess." Mom said, sternly.
You whimpered. You didn't lie where this was going.
"I... I'm sorry, Mom... I... I..." You stammered.
Mom sighed.
"Just... Be quiet for a little bit. I'm going to clean this up and then I've got something special for you." Mom said.
She pushed you off her lap onto the cold basement floor, took out a damp rag, wiped up your shameful little puddle of sperm, and walked off to drawer full of strange and obscene things. You grew increasingly worried. Soon, Mom came back with a small and strange little metal device.
"What's that?" You asked.
"Well, it's an evil little device I made for you in case you ever got out of control. It's a little cage for your little penis!" Mom said, smiling.
Her eyes narrowed and her mouth formed into a wicked smile. The object appeared to be a little metal box with some removable pieces and a hole in the bottom for where your cock can go in.
"Why?" You said, trembling.
"Well, Brandon, if you can't control yourself when you ejaculate than I'm going to. This little device keeps you from cumming. At all. But it won't stop you from getting hard. In fact, it's supposed to feel really good. I wouldn't know since I can't put it on myself, but I've heard some good reviews, to say the least. But anyway, you'll only get to get off when I allow it until I feel you've mastered your body." Mom said.
You whimpered and put one of your hands over your crotch.
"Please, Mom... It won't happen again." You whimpered.
Mom telekinetically pushed your hands away, exposing yourself again.
"It's going on whether you like it or not." Mom growled.
Mom took the metal device and pushed your tiny and sad cock inside and locked it in place. It only went over your cock and let your balls hang freely, but it was a little bit heavy. She then took the key and placed it on top of a tall shelf, one you couldn't reach. In fact, she could barely reach it herself.
"Aw, this sucks..." You moaned.
You stared at the metal box encasing your cock. Mom was right, the inside of it wasn't metal and did feel really good, like it was soft, tight, and felt rather smooth and silky. There was also a tiny hard piece that went into your urethra, but only a tiny bit, no more than a centimeter. You stood up.
"So... How do I pee?" You asked.
Mom laughed.
"Oh, don't worry about that. Any time you have to pee a magic aura activates and teleports the urine from your bladder to your sister Jenny's." Mom said.
"What? Jenny? Why?" You said.
"Because she's been naughty and won't do her schoolwork and got mouthy with me the other day. Now she's going to wet her diaper twice as much!" Mom said.
Truly, Mom came up with the most creative and diabolical of punishments. She put her hand on your shoulder and looked you in the face.
"Now, Brandon, I want you to go upstairs and tell your sisters why you must wear this." She said.
"What? Ugh... Okay..." You said, frowning.
You walked upstairs, your head hanging low, into the living room.
"Jenny! Lucy! Come to the living room! Your brother has to tell you something!" Mom called out.
Jenny, wearing only her diaper, stumbled in from her room. Lucy, wearing only a pair of black panties with her breasts hanging free, sauntered in from the hallway.
"Ooh, what's that on your cock, little bro?" Lucy asked, intrigued.
"It looks uncomfortable." Jenny added.
Mom gave you an evil smile. You quivered.
"Why don't you tell them, Brandon?" Mom said.
"Oh... Well... Mom was collecting some DNA and I... um... I spilled some DNA on the floor." You said.
"...And?" Mom said, patting your shoulder again.
"...And I have to wear this cage that keeps me from... um... 'getting off' when I'm not allowed." You said.
Lucy laughed at you.
"Ha ha! Oh my god, really?" She said.
Jenny seemed more sympathetic.
"Wow, that sucks ass." Jenny said.
Mom shot her a dirty look for using that kind of language in front of her.
"And I should add, if your little brother gets out of line, the cage is programmed to give him an electric shock." Mom said.
Mom had forced Jenny and you (and Lucy when she was younger) to wear shock-diapers in the past. They were diapers that had electrodes inside that zapped your ass and genitals if you misbehaved. You'd only had to wear it once when you were little, but Jenny, being in a rebellious phase, had been made to wear them quite often in the past. You and Jenny had built up a resistance to electricity and energy based attacks in general this way, but you hated it.
"Let me demonstrate." Mom said.
At that, the box sent a jolt of electricity through your cock. Pain spread through your balls, your torso, and out through your legs. You let out a scream and your knees buckled. You fell on your ass in a humiliating fashion. You cradled your aching balls in your hands and moaned. Jenny looked at Mom angrily.
"Don't do that! Those shocks hurt, you know!" Jenny said.
She knew all to well.
Mom sneered at little Jenny but didn't say anything. She just walked away back to the basement to do some kind of strange and obscene thing with her machinery.
Which sister goes to your side?