Hiss...
Five of them in a row. What a sight.
Rin wasn't the only one thinking this; Kaede, watching through the closet crack, felt the same. She and Suzu had played similarly, but two couldn't compare to the raw impact of five identical quintuplets.
Kaede felt an itch deep in her own groin. Those beautiful asses were just begging for a slap. If only Ichika and Miku were there, she would have walked out, but she couldn't reveal herself to the others yet.
However, she could still "play" with them remotely. Kaede opened the System interface. Since all five sisters were wearing the System-made "tokens of love," she could see their detailed stats—including their "climax progress bars."
Rin was now playing a new version of "Roulette" with them. Instead of oral turns, they would swap every time someone reached an orgasm.
"Let's start with Daddy's good girl, Itsuki~" Rin slapped her butt, and Itsuki immediately arched her back higher.
Her newly opened body was once again invaded. Every thrust felt like it was hitting her soul, slamming against the "baby's room" door. Every sensitive spot was being ground and friction-burned. The initial stinging pain faded into a melody of wanton moans.
The sound of flesh hitting flesh became wetter. Yotsuba, kneeling next to her, could feel the stray sprays of fluid hitting her own thighs. Itsuki hugged the pillow, trying to hold back the pleasure to let Rin fill her, but eventually, she threw her head back in a high-pitched, lewd scream.
In the closet, Kaede watched Itsuki's progress bar. The moment it hit 99%, Kaede activated the vibration/shock function on the nipple ring. A sharp, electrical pulse shot straight to Itsuki's core. Her blue eyes rolled back as she was sent into a level of climax she had never imagined.
The progress bar hit 150%!
"Aah... fill me up!!!"
But she didn't feel the warmth of a climax inside her. Rin pulled out. Even though Itsuki wasn't a "weakling" like Utaha, she was still a novice and easily finished.
"My turn, my turn! It's my turn~" Yotsuba was already impatient. As the most athletic and secretly the most sex-crazed, she couldn't wait.
Unlike Itsuki, Yotsuba didn't just endure the impact; she thrust her own ass back, meeting Rin's lunges to force him deeper. She didn't try to hold back, wanting to hit the peak as fast as possible to let her sisters have their go. With Kaede's "help," she reached a screaming climax in record time.
Next was Miku. While Yotsuba was firm and athletic, Miku was soft. Even though she wasn't as "tight" in terms of muscle, her soft, pillowy interior felt like it was trying to seal Rin inside her forever.
"Everything... give it all to me!!!!"
After Miku's high-pitched finish, it was Nino's turn. She had no "tsun" left, only "dere." She screamed like her sisters, but...
Pia!
"!! Wait... wait!!! Don't hit me now!!!"
Teasing a submissive Nino was too much fun. Rin targeted every weak spot he had discovered, slapping her rhythmically as he hammered into her. Despite her protests, she was sent over the edge by the combined stimulation of the spanking and the thrusting.
"Hmph... even though I'm the girlfriend, I'm last." Ichika pouted, playing the "cuckolded" role.
"Don't you have a 'Netori' fetish? Watching your boyfriend eat your sisters should make you happy. Besides, the last one gets the most reward."
Rin slapped Ichika's ass, but he didn't enter her immediately. He moved to the front of the bed. "Come, lick off what your sisters left on me."
"...Pervert."
Ichika didn't know what to say, but she decided to treat it as acting practice. She had seen scenes like this in Kaede's manga—the cuckolded protagonist cleaning their partner after an affair. She stuck out her tongue and meticulously licked away the juices of her sisters. She even tasted a hint of blood.
Once she was finished, Rin returned to her rear. He noticed she seemed even more excited now. He lunged into her, skewering her.
As her "official boyfriend," he should have finished inside her, but for the first time, he wanted the sisters to be "equal."
"Eeeek!!!!!"
After five sisters, Rin was at his limit. He pulled out of Ichika and moved back to Miku. Miku excitedly arched her back, expecting the "filling," but Rin simply pressed himself against her soft butt-crack.
He didn't want to be biased. He only had one cock, after all. He held Miku's soft cheeks together and made his final sprint. Then, he stood up and, like a man at a urinal, aimed his "hose" at the five sisters' smooth, arched backs, letting his seed spray across them all.
"Since you were all such good girls, here is the first batch for everyone!"