Blowing the Ballasts

You finally reach the wall of the swimming pool, surfacing and gasping as you lean against it.

"Alright! Nice job! You're improving," says Lee Jiwoo, your swimming coach. She whoops and claps for you, which resonates in the indoor pool. Even more so since you've been practicing quite long on this late afternoon session so the pool is devoid of everyone else.

"Yeah! I didn't...I didn't feel like I was gonna sink like a stone there," you exclaim breathlessly, hitting a high-five that she offers. You look around the empty pool, chuckling to yourself. "Damn, but I really took a while though, didn't I?" you ask, embarrassed.

"It's okay! People learn at different paces. This is your pace," Jiwoo assures, tapping your shoulder. "Although, maybe there were some things getting in your way? Some kinda...distraction?" she asks somewhat playfully.

"Uh...distractions?" 

"Mhm."

You swallow. It's right in front of me, you want to say, but that wouldn't be appropriate, would it?

"Is it...right in front of you, maybe?" she asks, eyeing you up. Your face stretches. Damn, this girl can not only teach swimming, but read minds as well?

"That's—er..." You silently stutter for a less frontal alternative, but none comes to fruition.

"I take it that's a yes," she chuckles in a low voice, biting her lip and tilting her head. You close your mouth and look down in shame, your skin feeling colder than the pool water.  "H–How did you know?" you mumble. Jiwoo chuckles again, absolutely not helping your situation. 

"How wouldn't I? I could see you were hard before we even started." Jiwoo takes a step closer to you. 

"I'm...sorry, noona." You look up at her face again, your cheeks burning and your cock straining against your swim trunks. "Tsk tsk. You little pervy boy. Does my outfit make you horny?" she asks, voice still playful but a tad lower.

Your lips tremble and your arms shiver, it feels like you're shrinking under her gaze. Well, all except for one part of you downstairs.

"Come on, tell me honestly. Does my outfit make you think dirty things?" Jiwoo's voice is low enough that it can only reach you now. And it oh, so turns you on like a stiff light switch.

"Y–Yes...noona. It—" Your eyes glance to her thighs underwater, sending a jolt through your chest. "It really does." How could it not? You're an early 20s, porn-addicted adolescent who's never had any meaningful interaction with women around your age.

When you stepped out of the locker room and saw Jiwoo in her swimming outfit, your mind went into the gutter faster than you could sink into the deep end of the pool.

The full black bodysuit hugged her slim figure beautifully. The cutouts on the sides teased her smooth waist and the V-shape they created directed your focus down to her forbidden triangle.

Speaking of that, the swimming skirt did not help very much. Its length—or lack thereof—showed off so much of her luscious thighs. The integrated safety shorts almost worsened the problem, molding to her pussy lips like a glove.

"I see. So you were distracted during this session, correct?" Jiwoo's back to her professional tone, but her demeanor otherwise didn't change. You nod slowly in response, your skin feels like it's on fire and freezing cold at the same time.

"Hmm. Well, you still did pretty good despite the fact, so that's that. But..." She hovers over to be right in front of you. You're suddenly aware of how the water makes the outfit cling to Jiwoo like a second skin, leaving nothing to the imagination. "We'll need to include some...focusing exercises in our next sessions."

Your voice catches in your throat. A hint of Jiwoo's body essence is evident even over all the chlorine, so close is she standing. "Focusing...exercises? Like what?"

Jiwoo tilts her head and smirks, then you feel her hand on your bulge. You gasp and buck, whimpering when she fully gropes you underwater and curls her fingers around your covered erection. Jiwoo grins and scoffs at your reaction, shifting her body closer still. Her shapely boobs are just short of pressing against your pecks, her warm breaths tickling your cheek.

"Since this little guy down here's hogging your attention..." Jiwoo snakes her hand underneath your trunks, touching you directly. "We'll get him all drained before we start, deal?"

You should stop her, turn her away, report her or at least cancel all future lessons and change coaches. Instead, you’re shivering and turning to mush, your hips chasing her touch.

"Hey, rookie. You heard what I said?" Jiwoo snaps her fingers. "Y–Yeah! I did," you huff, biting your lip. Jiwoo chuckles, shifting her groping hand slightly. "So, deal?" You clench your jaws and groan, then nod fervently. "Deal! Whatever you say, noona!"