(Watersports in bold)

It was a fine weekend afternoon when Ochako and Mina decided to visit the big mall/department area downtown. People around them noticed well their short shorts and big, youthful breasts swaying freely under their thin, bra-less tops, but the tantalizing teenagers didn't mind being in the public's eye. As heroines-in-training, they were taught to be in the service of the citizens, no matter their problems - not to mention, being in a perpetually horny age.

  So the two girls didn't hesitate when a man called them over at the central plaza, saying that he needed their help. As they stood smiling before him, he didn't waste any time starting to feel them up - and they listened dutifully to his explanation about how he'd just gotten a raging boner as he saw them, and that he couldn't go on with his day without getting it down - while his hands roved freely over their squeezable, firm tits, pert asses and down their already moist panties.
  Uravity and Pinky each had two of his fingers buried inside their tight, wet public-use pussies while they agreed that that kind of high blood pressure could be dangerous, and that they should help his penis relax.

  He wanted to use cute, soft Ochako, but for once, not stick his dick inside her - even if she wouldn't have hesitated to let him - but to masturbate with her soft pussy lips and fill her panties with sticky cum. She pulled down her pants to accommodate him, while Mina opened his pants and fished out his long, thick dick. She felt its hardness and size and girth, pulsating heat into her small, pink hand, and she fantasized about how it would feel buried to the hilt in her needy cunt, but instead she guided it down to her friend's waiting moist mound and pushed it in until the head was buried between Ochako's warm folds before starting to masturbate it slowly for him.

  Both the anonymous man and the young provisional-licensed heroine before him moaned softly as Mina made them both feel good. The civilian in need's hands were now locked to Uraraka's D-cups, which were thoroughly fondled as Mina's free hand also roved her friend's body, squeezing her squeezable urarakan butt and then slipped in from behind to make sure  that the precum-dripping cockhead went properly across her girlfriend's sensitive clit with each pass, before slipping her fingers into the wet and wanting hole.

    While Mina was still inside her friend's fuckhole, the man suddenly said "That's a good little slut.. now, piss over me and keep going."
  Ochako, almost lost in bliss, just gave him a moaning grunt and a mischievous smile, and Mina could feel from the inside how her lower body tensed up and then relaxed as she let loose her juice. The buxom brunette's bladder was actually almost full, it had been over half an hour since she last peed, on the train there, while talking and laughing with Mina, who had also pissed herself at the same time.
  Her panties had just dried, but now they were flooded again with warm piss that flowed out around the jerking dick and over Mina's hands and down her legs. Man and girl both enjoyed the feeling of the gushing fluids over their sensitive parts, and Mina could see that Ochako was close to cumming now. And she could feel it in the pulsating dick in her hand, too.
  Ochako felt a warm wetness over her butt as well, and she understood that Mina, her crotch pressed to Ochako's backside, has started to piss in her small, tight shorts as well. She was really going to cum soon.

   The man released a second before Uraraka, and Mina, well experienced, slowed her pumping hand to match his orgasm and both girls looked him in the eyes with happy smiles as he emptied his balls to the last drop over the teenaged cunt in front of him. That made Ochako go over the limit as well, and she shuddered and moaned as she came over her virile user. Shot after shot was expertly coaxed out of his spasming member by a well-trained hand and landed heavily over and between thirsty pussy lips and welcoming underwear cloth. He shot out so much - three, four, five thick spurts followed by several smaller dollops - that the girls wondered if he has some special quirk for it - but either way, he really needed it, and they were happy to help. Mina's fingers worked all the way through her good friend's orgasm, knowing that was the way she liked it after many hot nights together, and worked big globs of potentially potent sperm into her love canal, coating its inner walls with white sauce.

  As he slowly shrunk down, a veritable torrent of sticky cum filled the sex-drunk young woman's panties to the brim, and Mina wiped the last of his outpourings off in her lover's pubes, then dove down to finally get a small snack herself, licking everything off his glans and then taking the whole remaining length into her mouth to suckle happily on it until she could present a fully cleaned cock. She wiped it dry in her hair, and then turned hungrily to the wealth of liquid white candy and her good friend's tasty cunt buried thereunder. But to the horny teen's dismay, Ochako giggled and said "Sorry, Pinky. I'm going to be selfish this time..."
And slowly, as to not spill anything, the determined heroine-to-be pulled her pants back up and with an audible squish let the thick dick slop press up to cover her entire crotch.
  "I want to keep this big load around me for the rest of our trip" she said, and kissed her friend.
  "I'll let you eat me out when we get back, alright?"
  "Fine", Mina pouted. "But I want that, too."
  "Alright", Ochako beamed. "Let's find you someone to fill your pants as well!"
The girls smiled together and bowed for the rescued civilian.
  "Thank you for using our services today, sir, and don't hesitate to call upon us again, if need be."

  "Actually, I have one more service to request of you two young sluts...", the man said. "Sit down, both of you."
  The girls looked at each other in anticipation, they could guess what would come, and had hoped for it. They both knelt in front of him and looked up at him like two little begging puppies, and they soon got their treat as he aimed at their faces with his dick and started to piss.
  He started with Ochako, his heavy beam slowly traversing her entire face and then up into her hair, the flowing torrents gushing down over her whole front, making her thin clothes stick to her skin. Then over to Mina, who opened her mouth big and let him piss right into it for several seconds, before he aimed it up into her hair as well, emptying the rest of his bladder into her big mop of pink hair until it hung in heavy clusters clinging to her face, while she savoured her mouthful of hot piss, sloshing it around in her mouth and gargling it before finally swallowing it all with a content sight.
  The two friends had been masturbating each other furiously during their toilet duty, and at least Mina got a handful to taste of Ochako's magnum cum load as she whipped the sticky batter into a thick foam over her buddy's cunt together with the fresh piss that flowed down her front...