I can try for you

Part 4

After two more days of practicing which included more making out, blow jobs, and hand jobs, San decided that he was ready to try what Yeosang wanted in the first place; watersports. To say Yeosang was excited to hear that was an understatement. San swears he has never seen Yeosang's eyes shine that bright. But, it was not the usual innocent glint, there was something sinister. That made San kind of nervous, but he ignored it telling himself that it was their Yeosang.

Yeosang told him that they'd do it in the bathroom to make it easy to clean the mess afterward.

For now, they are just waiting for San's bladder to fill up. San suggested that he could drink a lot of water to make it faster but Yeosang didn't like it. "Let it build up slowly," he's told. They decided to play some games for the time being, San occasionally taking a few sips from the water, having already finished one bottle. Wooyoung is with them too of course. For some reason, he is so passionate about filming them. He had even set up two cameras -his own one and Yeosang's one- in the bathroom. He is going to record them with his phone as well. San even joked asking if Wooyoung is gonna upload it on pornhub to get rich. Wooyoung had laughed and said that he always wanted to make a porno.

Yeosang and San are watching some cute cat videos on San's phone while Wooyoung is reading the fanfiction -the one that started everything- on Yeosang's phone.

"Damn, our Aitny are kinky little shits, aren't they?" Wooyoung says amused, as he finishes reading.

"Well, they are our fans, what did you expect?" San laughed but suddenly stopped and touched his lower belly. "Shit, I almost peed."

Yeosang and Wooyoung laughed as San tried not to laugh and piss himself.

"Hmm, I think we can start now Sannie, what do you say?" Yeosang asks reaching out to cup San's belly where his swollen bladder will be. He presses down gently making his breath hitch.

"Yeah.." San answers absent-mindedly. His focus is on Yeosang's hand over his bladder.

"Do you like it when I press on your bladder San-ah?"

"Mhm. It hurts, but it's....good." San moans softly, as Yeosang continues to massage his lower stomach. San is so focused on the pain and pleasure he's receiving that he misses when Wooyoung and Yeosang make eye contact and have a silent conversation. Yeosang nods and moves to pick San up bridle style. San clings to Yeosang's shoulders as he is carried to the bathroom with Wooyoung following them. Yeosang gets inside the bathtub while still holding San and adjusts him so that San is straddling his thighs.

"Do you still wanna do this San? I won't be upset if you back out now." Yeosang says with a soft smile. He really wants to make sure that San is okay and comfortable with the whole thing.

"I'm sure Yeosang-sh. Plus, I'm already turned on." San says sheepishly. Yeosang laughs at that and pulls San in for a kiss.

Meanwhile, Wooyoung films them with the most flattering angle, thinking that they look hot like that. His eyes meet San's when he leans back from the kiss. Wooyoung winks at the boy making him laugh. When San goes back to kissing Yeosang, Wooyoung moves to the other side to capture his best friend's face as well.

San starts to squirm on Yeosang's lap as the need to pee grows with time. He is also rock-hard. Yeosang is too, he can feel it against his butt. Both moan when San starts to grind on the Yeosang. At one point San leans his upper body away from Yeosang and braces his hands on the elder's kees to roll his crotch onto Yeosang's.

"Yeosang...," San calls in a whiny voice. "I-I really need to pee."

Yeosang's eyes lit up at that. He hears Wooyoung taking a deep breath and smirks. Seeing San being so desperate makes him so aroused. And they are only getting started.