Chapter 4 - What do you mean this is my normal activity? Sarada

There's a new exclusive chapter for this up on the Subscribestar, where he goes to Tsunade to try and figure this out.
He gets a titfuck, and a medical examination of his penis via her hand.
It takes place after this piece.

Boruto enjoys pouring his thick and sweet secret ingredient directly into the sauce he’s making. The very thought of his teammate eating it excites him in ways he wasn’t sure he could get excited. “Can’t wait to see how this works!” It’s his evil cackling that worries his little sister and mother as they observe him from the doorway.

“You think he’s okay?” Himawari asks her mother.

“He has been acting weird lately.” Hinata rubs her daughter’s shoulder comfortingly. “Boys get weird sometimes, we should let this sit a bit longer.”

“They get this weird?” Himawari eyes her mother suspiciously. “Was dad this weird at any point?”

“There was the whole month he spent learning how to summon a toad.” Hinata palms her cheek, thinking back on her husband back when he was cute and not a terribly absent husband. Back when family was all he wanted.

“But his toad summoning is really powerful.”

“Yeah, but he was training for a tournament that he couldn’t really use the toad in? His priorities were always a bit fried. He sought progress, moving forward, and failed to look at what was in front of him. He did that a lot.” Hinata sighs happily at the memory.

“Is that what Boruto is doing?”

“Maybe?”

“I made us lunch.” Boruto says as he spreads out a blanket on the grass, smiling at Sarada with all the timid excitement he can. Now is the time to test it. It wasn’t very difficult getting her alone with him in a training ground. In fact, it was damn easy. He just had to wait for a day off and say he wanted to spend some time with her. Being close to someone has its perks, even if he plans to abuse that closeness.

“I might think this is a date if you keep this up.” Sarada teases him, smirking at his gentle flush as she seats herself on the blanket. “I guess it kind of is, isn’t it.”

“Maybe a little?” He admits, as he pulls the wrapped bowls from his pack. It takes a second to figure out which one is which, before he hands over Sarada’s and smiles while breaking his chopsticks. The smell of the meal revealed is strong, and has the both of them taking a nice serene moment to absorb it. Then, with eager eyes, he watches Sarada take her first bite.

“It’s thick.” She notes instantly, chewing slowly. “An odd taste.” So he needs to change his diet before he tries something like this again, or maybe find a taste that works really well with whatever he currently tastes like. It’s hard when he doesn’t know. “I like it, I just don’t know what it is.”

Today’s another test. Is it the cum that’s erasing memories? He poured and mixed some into the food, and watching her eat it is surprisingly hot. It has him harder than he was pounding his mother, and that’s saying something because he’s pretty sure he came more inside her than he has anywhere ever. “It’s a secret.” He winks, before picking up the courage to get up. Standing, he walks around the blanket, drops his pants, and begins to quickly jerk himself right in front of her face. It’s a risky gamble, if it doesn’t work, she’s gonna punch him in the dick and that’s gonna hurt. Then there’ll be this whole, earning back her trust thing… He could probably fuck her face and make her forget and it might go back far enough, but what if it didn’t?

Either way, after a few strokes, his heart rate bouncing in an attempt to flee his chest, he finds he hasn’t been attacked. In fact, Sarada continues eating his meal made for her. Chewing while eying his cock. She actually takes a sniff! It’s astounding. He’s not sure how to take it, what he does know is that his heart’s now trying to pound out of the tip of his dick, and his cum probably won’t be too far away. He gets a bit more daring, leaning in, pressing himself against her cheek while stroking. A bead of pre-cum flows down her cheek, down her chin, drips into her food, and she cares so little until she scoops it up and eats it.. “Oh! That’s what it is! It’s your cum! You put your cum in my food.”

That shocks him to his core. He takes a step back, “wha- you know?” He blinks, awkwardly. “You were just gonna let me jerk off on your face? No objection at all?”

“Honestly?” She tilts her head to the side, pondering the universe while his hands work on autopilot. “You’ve done weirder stuff? You’re just kinda weird. I’m used to it.”

“Used to it enough I can unpromptedly jerk off on your face!” He shouts.

“Weird enough I’ll do this.” With a wink, she grabs him by the hips, and pulls him forward. Pulling his meat into her throat without a care. She sucks hard, her tongue swirling around him, and she closes her eyes to show off that she hasn’t a care in the world. She genuinely doesn’t mind eating his cum. She’s not bothered by him jerking off, she, there’s so much confusing questions pulling at his mind that he actually forgets. “Wait Sarada, pull away!” He shouts as he realizes what’s happening. She rolls her eyes, as if to say ‘obviously I’ll swallow, Boruto’ and he’s shooting thick globs down her throat before he can react. His balls churn with heat, pushing seed into her gullet and soon her stomach. He cums so hard his knees go weak, and he finds himself falling back. He slips right out of her now full mouth, pouring out a shot so strong it coats her face to her skirt like it’s on a mission. One shot after another covers her clothes, drenches her face in heat, and even gives her a new hair color. He stares in horror, as she reaches down, grabs her bowl- “Mnn, this has an odd taste to it, I can’t quite place it.”

Good news, he learned his cum alone doesn’t work. He needs to orgasm too, or maybe it just has a freshness requirement.
Bad news, he doesn’t have control over it at all. “Sorry.” He whimpers, putting his dick away and pouting. So Sarada is at a point with him where she’d willingly have fun with him? A pensive look to the sky leaves him rather disappointed. Pursuing anything with her will be pointless until he finds out how to control it. It’d be messed up to play with her, use her willingness.

To be fair everything he’s done lately is messed up, but in a different way, a way he’s more comfortable with. 

“Fuck.”
Time to consult the devil.
Tsunade.