Rin returned home thoughts a mess. Her little excursion had led to many discoveries, and not just about her growing degeneracy. She still shivered at the pleasure that shot through her when she was caught masturbating by those old men. It was comparable to cumming inside her sister.
And wasn't that a discovery?
The fact that Sakura had such an elaborate setup and had been doing this for so long that there was a schedule of all things was very surprising (and a bit arousing). Rin admittedly knew little about the Matou magecraft so she chalked it up to the whole thing being related to it.
With that, her magus mentality was calmed… but there was the issue of her thoughts as a sister. Surprisingly… she was fine with it. Rin knew with absolute certainty that she would have gone into an absolute rage just two scant weeks ago if she learned about the situation.
But now, with her mind cracked by pleasure and degeneracy, not so much. If anything she was eager to see Sakura again next weekend! The way her fold writhed as her penis dug into her was simply divine! Rin's cock stirred and tented her pants at that. She did not even care that anyone could see her bulging erection now. If anything it made her more excited!
So she walked down the moonlit street proudly wagging her clothed cock. The excitement of potentially being caught made her penis throb.
Sadly she didn't run into anyone… but the fact she succeeded in walking around proudly showing off her erection offered another type of pleasure. Rin knew for a fact she was going to be going outside more as her little tastes of exhibitionism felt amazing~!
But in the meantime, she had to get cleaned up for the night. She had to get up later to pick up her gems and get the 'training' videos. She wanted to implant a second jewel and see if she could surpass those old men! If one jewel wasn't enough then two! And so on and so forth. She would also learn all she could from those videos so next time she makes Sakura squeal louder!
Rin refused to lose to a bunch of old men.
Rin dropped off her things and headed to the bathroom. She stripped and stood stark naked for a moment, throbbing penis bouncing in time with her heartbeat. Even after blowing her load so much she was still horny.
She gripped her needy dick and gently ghosted her hand across its length. As she neared the tip she squeezed the spongy head with her thumb making pre-cum spurt from her piss slit. She resumed her stroking and found she was still a bit slick from her sister's juices. That only served to make her harder. She brought her slickened hand to her mouth and sucked on her fingers while she pumped her length with her other hand.
Rin moaned as she tasted the mix of her cum and Sakura's fluids. She bucked her hips lewdly while she pumped her dick.
As she neared her climax, the door to the bathroom opened to reveal her mother. Rin's eyes rolled up into the back of her head as she came hard at getting caught.
She shot out a lance of cum clear across the bathroom and onto her mother's face. Aoi brought a finger and scooped up a wad of sperm.
Her mother tilted her head and giggled, "Still playing with the shampoo, Rin? Here let Mama finish cleaning you up so you can go play with Sakura a bit before bed."
Aoi then stripped and joined her daughter.
Rin broke from her post-orgasm daze to find her mother washing her.
"My you are getting so big Rin! I can't believe you are going to be turning seven soon," said Aoi with hollow eyes, mind somewhere else.
Rin felt sadness for a moment at her mother's condition. But it was soon drowned out with lust at feeling her mother's soaped-up breasts against her back and feeling her soft hands gliding over her body.
Her dick hardened once more and soon enough Aoi noticed it. Rin then jolted at feeling her mother's soaped hands grasping her dick.
"...Tokiomi? No, this is too big for Tokiomi. Whose is this?" Muttered Aoi visibly confused. Her face was slightly pained as she dragged a hand up and down Rin's length.
Rin had seen that expression before, it was usually when her mother was on the verge of a mental breakdown. Acting quickly Rin said with a childlike tone, "What are you talking about Mama, it's mine! I always had a thingy bigger dads."
Rin felt briefly embarrassed at having to speak like a child but that embarrassment quickly turned into arousal. The list of her fetishes kept growing and she wasn't sure how to feel about it.
The confusion on her mother's face faded slightly, "Did you? I… suppose you did." Aoi's soaped hands sped up and she whispered into Rin's ear, "Remember to keep it a secret from your Papa, he always gets a bit moody when the size of his thingy gets mentioned."
Rin couldn't help but giggle, "Sure thing Mama."
So her father had a complex about his size? Well, to be fair so did she when she sprouted her penis… and still did. Damn old men and their huge cocks. But she was doing something about it at least.
Rin let out a grunt as her mother's hands deftly traveled her veiny length.
Aoi giggled, "Hehe, it's fun playing with one this big."
Her mother's hands sped up and Rin felt her balls pull against her shaft as she spurt out another thick load of jizz. Her face was twisted in pleasure as her mother squeezed out the last drops held in her piss pipe.
Rin drooled at how good it felt for her mother to milk out a load. Before she could enjoy the feeling a bit more she was hurried into the bath.
Rin was forced to sit on her mother's lap while they soaked in the tub. She looked up at her mother's face as Aoi gently rubbed her head. Her mother hummed a soft tune while they soaked and Rin felt very sleepy. She had cum a bunch today, maybe it was finally getting to her.
So Rin simply enjoyed the moment. She didn't want to dwell too deeply on the perverted or incestual acts she did today. No, she just wanted to enjoy a peaceful moment with her mother.
But all good things must come to an end. Soon enough they exited the tub and Rin made sure her mother returned to her bedroom. After tucking in her mother it was time for Rin to head to bed. She slipped on her night condom got comfortable in her fluffy blanket and passed out.
Rin awoke sometime in the early afternoon. She yawned and crawled out of bed, bloated condom filled with her nighly emissions sloshing around in the process. She peeled it off with ease and dropped a few gems before tying it off. She twirled it around as she strolled nude to her wardrobe.
After selecting an appropriate outfit for her daily activities she prepared for the rest of the day.
Picking up her jewels was a simple affair as always. Although she did spot about four more jewels that could be used to stud with. So she asked her dealer to reserve them as per usual when she spotted a few jewels she liked.
While she hadn't expected to need more the option was good. Besides they could be used for other things in the case she didn't need them for that.
Now it was time to go pick up some 'training' materials.
After putting on her disguise sans mask, as she didn't want to look too sketchy during the day. Instead, she used a minor mystic code she created specifically for this, an earring that cast an illusion over her face making it a bit more masculine. It sharpened her features enough so that if people saw her they would assume it was a relative of her as worst.
She walked into the video store and was greeted by the old man at the counter, "Hello there! What can I get for you young man?"
She walked up and leaned in, "Kubo sent me."
The man flashed a lecherous grin, "Did he now? Glad to see some new blood enter our little community! Now follow me to the other store. Hey, someone man the register while I help this customer!"
A rather cute-looking boy ran over to take the old man's place.
She then followed the old man to a door near the back. When opened it revealed stairs heading underground.
She followed the old man down and he asked a few questions, "So how'd you meet old Kubo?"
"I met him at the park with a few of his buddies last night."
The man smiled as he adjusted his growing bulge, "Ah, the toilet girl. Nice set of tits and holes on that girl. Shame I couldn't make it last night I was busy with another girl."
Rin felt her dick stir and she did the same, "Yeah, she was nice. My first time too."
The man laughed, "Never a better hole to pop your cherry! That girl is something special so you might get a bit spoiled when it comes to regular pussies."
Rin recalled Sakura's squirming folds and let out a low hum.
Soon enough they arrived at a pair of doors. As he pulled out a ring of keys to unlock the door he asked, "So young man looking for a few training aids then?"
Rin felt a bit self-conscious but she replied anyway, "...Yeah, the girl was squealing a lot louder with the old guys when compared to when I did it with her," she gained a look of determination, "I want to make her squeal louder."
The old man grinned, "Hehehe, you got some fire in you boy! Well, if you need the training to fuck a sluts brains out, then you came to the right place!" he opened the door to reveal another store filled with sex toys of all kinds. There were also rows of videos on display whose covers detailed various women.
Rin gulped and entered the store.
The old man then held up a hand, "Now give me a second to grab you something special. If you want to make toilet girl squeal then these might help you out! In the meantime feel free to examine the product."
The man dipped into a backroom and Rin did just that. She wandered around looking at the various sex toys. From simple dildos to fetish gear. She eventually found herself looming over the display models for onaholes. From simple pink tubes similar to her homemade one to entire fake torsos and asses.
She gulped as she laid a hand upon a partially fat-assed onahole. She didn't know they made these. She then eyed one that sported a pair of high breasts.
She wanted all of these… but her wallet would protest.
Rin then remembered she was a magus and could store information in her circuits.
Was she really going to use her circuits to store blueprints for onaholes?
Yes, she was. With a flip of her mental trigger, her circuits turned on. She ran her hand over the various sex toys casting Structural Analysis and stored their blueprints away for later. She even stored a few dildos and other interesting toys.
It was a bit exhilarating just taking them for herself and no one is the wiser!
Now she could project them as needed but they could also serve as an excellent base for creating her own toys. She was still a magus and wasn't the type to settle when improvements could be made, even if her current passion was sex toys.
Hmm, Rin just realized that she could have done that with condoms as well.
Well, something to do when she gets home.
Soon enough the old man returned holding a VHS case.
"Sorry for the wait, had to make a copy for you and the damn thing was acting up today. Hope you don't mind VHS, I'm a little old-fashioned."
"I prefer tape anyway." She did make occasional use of her VHS player after all. She was also glad she didn't have to buy one of those new complex laserdisc players or whatever it's called.
The man laughed, "Ah, a fellow connoisseur!" he then led her to a counter, "So let's get you sorted. Also, see anything you like? I personally recommend the full-torso onahole. Good for busting a fat load and practicing new moves. Still prefer a girl's tight, warm, hole but if it works, it works."
Rin waved him off, "I'll be fine for now. So how much?"
A few minutes later Rin walked out of the store holding a bag. It was time to go home and get started on adding another stud to her dick.
She refused to lose to a bunch of old men!
Rin was once again nude in her workshop. The preparations for the other jewels went well. She did have to pre-charge them and that involved leaving them in the jar, the larger one that held about 20 liters she had bought recently. It took her a minute to fish out her other jewels from the smelly soup that was her old cum.
…She had to jerk out a load after that as the stench made her incredibly horny. But after that, she dropped the three rubies into the muck and made a magic circle to accelerate the absorption process.
It worked a bit too well as the full jar steadily drained as the cum was broken down into pure magical energy. All that was left at the bottom of the jar was three shining red gems.
If she had to guess there was about a quarter lost during the transfer. Not too terrible but she would have to refine the spell a bit to lessen that. And she needed to fill the jar again for her other gems. Two weeks of her loads were gone in an instant.
She polished the rubies till they shined and selected one to inscribe the spells. After having done this once the process went a bit faster. After a minute she was ready.
She projected a tarp once more, a larger one. Her loads have grown in size and adding a second jewel is bound to make her cum even more. She also placed the jar in the middle as she might as well start filling it once more.
Rin applied the anesthetic spell and got to work. Unlike last time, the second jewel seemed to integrate quite well. She nodded and activated it.
Then she felt it, the hammering of her heart and the monstrous throb of her penis. Her hands were on her dick in an instant and she began jerking off like a mad woman.
"Ah~ it feels so damn hot~ I can feel my veins pulsing so hard pushing more and more blood into my fat cock~ Unnhh, I can feel it get fatter~" she moaned as she pumped her dick.
She felt her balls tense as they drew up tightly against her body. Rin aimed her throbbing dick towards the jar and let loose. Rope after thick rope of ball batter exploded from the tip of her dick.
By the time she was done, the jar was a quarter full.
Rin huffed in exertion and then observed her penis… which was only an inch or so longer and a tad girthier.
That was it?!
After a moment she thought about it. The second jewel doesn't have enough magical energy stored like her family's jewel to make a huge difference. But it is a tad disappointing.
She then eyed the other two jewels on the table. It was tempting… but no, she would let this one settle first and then she would add the other two.
But she bet if they had more magical energy she would get even bigger! So the answer was to charge them up even more and that meant one thing.
Jerking off.
She eyed the jar and licked her lips, "Let's see if I can fill you completely tonight~"
Rin then spent her night jerking off and filling her jar.
Rin stretched as she strutted out of her workshop in the nude. She felt great even having stayed up all night milking her cock! Her sweat and cum covered body glistened in the morning sun, highlighting her musculature. Rin flexed an arm and hummed, "Seems a bit more defined than usual. Well, I have been jacking off a lot these past few weeks." She then gave herself a look over and found that, no, it wasn't just her arms. Her whole body was a little bit more defined.
Probably from the excess vitality. That second jewel must already be going into effect.
Rin then sauntered over to the kitchen grabbed the orange juice from the fridge and chugged it in one go. She wiped her face and let out a satisfied sigh as the sun's rays shined on her.
"Time for bed."