Repeated orgasm limit measurement for good healthy boy(健康優良児のケツイキ限界測定 英語版） (Pixiv Fanbox)

※I'm using Google automatic translation.　There may be a slightly strange translation

"Now, Nitaro-kun, this is just for research, and the insurance teacher is observing on the monitor in the next room, so please be full of excitement."

The school principal said so, tying Nitaro and his father, Reitaro, tightly to the bed.

His dad had consulted with an insurance doctor about Nitaro's repeated orgasmic constitution, but in the end he answered that there was no other way but to keep squid until his physical strength was exhausted, and he repeated to the limit for research. I was asked to show him how to do it.

"Dad ..."

"This may give you a clue to cure this constitution ... I'm with you. Don't worry (although I don't feel like having these old men ..."

"Now, let's get underwear off ...

"Oh…"

"This parent and child are big even if they wither."

"Nitaro already has a long precum."

Every time the voices of these old men echoed in Nitaro's head, he remembered the day when he was forced to repeat anal orgasm for the first time, and his anal naturally pulsated.

Nitaro's cock erected immediately. The dripping precum jumped out one after another and wet his chest.

Nitaro squeezed dad's hand. dad also holds back strongly.

"ooh, his anal is very tight."

The school principal loosens Nitaro's ass hole with his finger. Exquisite finger movements attack Nitaro's prostate.

"Ngu ... uh ..."

"Is it likely that you will orgasm with just my fingers? Then how about this!"

The school principal slowly inserts the pink vibrator he was holding and turns it on.

"Gua ... but ... !! Impossible ...! I'm coming !! coming !!"

Nitaro's legs began to quiver.

"Huh ... huh ... nuuuuuu!"

When I think that he trembled finely, his body bends. He repeats it at regular intervals.

"Nitaro ...!"

"Huh, huh, I can't breathe ... Ngua! Ah! Ah! Again ... coming !!"

"Dad's ass is also lonely, so I'm going to dig in something ... The stupid big cock and ball are in the way, so I'll tie them up!"

"Ku!"

"Even though you're an adult, you are sloppy with precum ... This huge testicle seems to be making plenty of semen."

Precum flowing from a huge dick makes the bed sheets soaked.

The dad's cock that erected and hardened pushed Nitaro's ass and gave Nitaro a new stimulus in addition to the vibration of the vibrator.

"Dad! Daaad! Cc..cominng! Comingggg!"

"Sorry Nitaro, I can't stand it either ...!

The moment the dad's vibe was switched on, Nitaro's vibe also digged deep into the anal.

"Daaad !! I'm scared! I'm scared !! I ... Hmm!

He holds his breath and bends, with his legs cramping. long. He would lose himself if exposed to such a long and intense orgasm.

Nitaro's cock rampages and scatters precum around.

"Ahu ...! Aba ... Gihiiiiiiiiiiiii!"

Nitaro ejaculates violently with an incomprehensible cry. 1 shot, 2 shots, 3 shots ... White turbid liquid pops out from glans hole one after another and hits the wall.

Dad say "Nitaro ... I'm ... coming !!!"

When the arm enters, a large amount of semen is released from the rumored dad's urethra, polluting the ceiling.

Nitaro finally finished his ejaculation with the 20th shot.

"Hah, ha, ha, dad, scary ... scary ... hiiiiiiiy!"

In addition, his legs start to cramp. Immediately after the pleasure of ejaculation, the pleasure of anal orgasm attacks.

After dad also fired about 15 shots, the cock became even harder as if the next ejaculation had not yet been done.

"If we could show you that kind of ejaculation, Our oldman's cock would be so hard. It's about time to play together."

"Hmm? It looks like the ass is getting dry ... Don't worry, I don't use lotions that are cheap. I'll make my stomach full with our semen."

The old men put a hose on the urethra and insert it deeply.

"I inserted it deeply so it won't leak ... Well, one side is here ..."

Insert the hose into the completely softened parent and child anal.

"The amount of eagles is not defeated by young people! Huh, huh, coming!"

"G ... Ah ... Gu ... Ah ..."

Nitaro groaned indescribably and felt the warmth pouring into his belly.

"Ku ... what the hell ...!"

"Ahi! Ahi!" When I pulled out the hose, Nitaro's legs, which had been in convulsions, began to tremble further, and the juice of the old men overflowed from anal.

"Uu!"

dad can no longer close his ass hole and spout old man's semen

"Gufufu, a good view ..."

Nitaro was fainted many times and remained orgasmic for 6 hours.

He always feels a little pleasure, but a big wave of pleasure is about every 5 minutes. His ejaculation reached 10 times. His brain was about to go crazy.

Reitaro also released about 5 times, but the area around his bed was muddy with the released semen.

"Dad ..."

"Are you okay? Nitaro?"

"Yeah, it's okay, but ... I wonder if this is really research ..."

"Are we just fooled by the old man again ...?"

"Oh my god, both of you guys still have a violent erection ... can you still go ?!"

The old men switched on the two vibrators again ...