[This is an item Mommy exchanged using 'Female Delinquent Training Points' in the system. Although it looks like it pierces with a needle, it actually stays in place by 'fixing space.']
Fixing space?
If it didn't actually damage the body—like a temporary tattoo—Rin didn't mind.
"Ahem..." Rin cleared his throat and placed his finger on the tip of Nino's pert breast. "This isn't for your earlobe. It's for right here."
"Huh?"
Nino froze. She knew what a nipple ring was; she'd seen pictures. She just never expected Rin to give her one. And... ear piercings were painful enough. She couldn't imagine how much a sensitive area would hurt.
But since it was from Rin... she would endure the pain.
Nino bit her lip, looking shy as she handed the box back to Rin.
"H-help me put it on. If it's a token of love... put it on my left breast, right over my heart."
"They're still washing dishes. Go take a shower first," Rin said.
"Mmhmm~" Nino, in high spirits, grabbed her pajamas and skipped to the bathroom with a sweet smile.
Rin sat on the bed and pulled out his phone.
Kaede: [So? Did Nino get it? She liked it, didn't she?]
Actually, the camera in the system had already activated when Rin touched Nino's breast, so Kaede already knew. She just waited a bit to avoid suspicion.
Rin: [She loved it. Too much.] Rin: [Where did you get this stuff? Do you have this kind of fetish too?] Kaede: [I originally got it for Kalen.] Kaede: [Don't you think it suits a submissive like her?] Rin: [True.] Rin: [Tell me sooner next time.]
Rin had suspected it was for Kalen. The two tsunderes had a complicated relationship, and Kalen only showed her submissive side when Rin was around. At school, she was still the haughty ojou-sama. Kaede had even used points to make Kalen lactate once as "revenge" for her attitude.
After chatting with Kaede, Rin put on his headphones and opened the app that looked like a hypnosis tool. The System Daughter could speak to him through the app.
[Daddy, don't bother reading the manual. I'll explain. You can wear it by piercing or 'space fixing.' If you use space fixing, there's no pain, so you'll need to make up an excuse.]
"No problem."
Rin was familiar with space fixing; the toys Kaede used for Sagiri had similar features to prevent them from falling out.
[It has many functions. For example, health monitoring—heart rate, blood sugar, location—it's more advanced than the system's basic tracking.]
[It also has vibration, electrical discharge, and sensitivity enhancement for the specific area it's attached to.]
[Since it's in a conspicuous spot, it has a 'stealth' mode. Unless her clothes are taken off, it won't be seen, even if she's wearing a thin T-shirt with no bra.]
"That's a good feature."
[Hehe~ It even has a defibrillator mode! It can output about 3500V, which is the voltage of a medical defibrillator!]
Rin nearly choked. Adult toys usually just gave a slight tingle; 3500V could literally kill someone.
[The rest of the functions are up to you to discover. For instance, you can swap the gemstone for something else.]
"Like what?"
[Like a pacifier, in case she's afraid of the baby biting her too hard later.]
"..." Rin didn't know how to respond to that. "Did you use one?"
[Maybe? I don't remember.]
Rin guessed she probably had. A baby wanting milk but getting a fake nipple instead...
Rin chatted with the System Daughter until he heard Nino's footsteps. He tucked his phone away and wet a tissue.
Nino burst into the room, her hair still damp. The anticipation in her eyes was unmistakable.
"All clean?"
Rin smiled. Nino was wearing a loose long-sleeved shirt as a nightgown. The two obvious points through the fabric proved she wasn't wearing a bra.
"Yes!"
She had always thought tattoos and piercings were cool but never had the courage to go beyond her ears. Doing it for the first time with the man she loved, and as a token of commitment... she was ready.
She nodded firmly and pulled her shirt off. Her pale breasts were topped with reddened tips; she had clearly scrubbed them hard in the shower to be extra clean.
Rin cupped her left breast, his thumb teasing the nipple. Nino let out a soft moan, but her eyes held a trace of fear. Ear piercings hurt. This would definitely hurt more. But she wanted it. She wanted to show it off to her sisters next time they were together.
Rin could see her fear. He had no intention of actually piercing her.
"Don't be so nervous. I have some anesthetic."
"You should have said so..." Nino exhaled. "Actually, a little pain would be fine. A love token should be unforgettable."
"I don't want to see you in pain."
Rin smiled and used the wet tissue to "apply" the anesthetic.
"I don't feel anything," she said.
Of course you don't! It's just water! Rin thought, but he kept his face straight. "If you felt it, it wouldn't be a good anesthetic. And Nino, local anesthesia doesn't take away all sensation. You can still feel pressure, just not the pain."
"Oh... I've never had surgery, how would I know!"
"It should be ready." Rin pinched the tip of her breast with his thumb and forefinger, pretending to apply pressure. "How's that? Any pain?"
"It really doesn't hurt!" Rin smiled. He wasn't using any force, after all. "Hold it yourself."
"Mmhmm..."
Nino swallowed hard as she watched Rin open the ring. He aligned the gap with her nipple.
"3... 2... 1...!"
Nino squeezed her eyes shut as Rin "pressed" down. But... she felt absolutely no pain.
She opened her eyes cautiously. The black gemstone ring was firmly attached to her bright red nipple.
"See? The anesthetic worked perfectly."
"Yeah! It didn't hurt at all." Nino nodded vigorously. "By the way... can I wear one 'down there' too?"
Rin tapped her on the head. "Don't push your luck. A piercing down there would kill you with pain."
Rin grabbed a binder clip from her desk and, to her confusion, clipped it onto her bare right nipple.
"OWWWW!!!!" Nino gasped, quickly ripping the clip off. "Never mind! That's too much!"
She rubbed the red mark on her right breast, the pain quickly replaced by curiosity about the gift on her left. She tugged the black gemstone upward. "It feels... tingly. A bit strange. But whatever~"
Nino cupped her left breast and bounced it slightly, watching the gem sway. She saw Rin's eyes follow the movement and let out a mischievous, wicked grin.
"Now you definitely won't mistake me for anyone else, right?"
Rin winked back. "And what if I still do?"
Nino bared her teeth like a little tiger and pinched Rin's chest through his shirt.
"If you still get it wrong, I'll pierce one for you too!"