A girl arrives

Anna lifted her head out of the water and stifled a gasp. Stepping away from the shelter of the changing rooms was a girl, and it was one that Anna vaguely recognised from the French class earlier in the day. The girl was wearing a bright yellow one-piece swimsuit that covered a slim and modest figure. Her hair was blonde and cut very short on one side, while a wave of hair swept down the other side to her ear. She seemed not to have noticed Anna but instead walked over to look curiously into the abandoned music box. Being careful not to make a splash, Anna kicked beneath the water and made her way to the steel ladder at the side of the pool. She hid behind this and lowered herself in the water as far as she could without submerging her nose. With one hand she gripped the ladder, holding herself in place, while the other still clung to her soaked shirt.

The girl finished her inspection of the box, and turned to look at the pool. Anna held her breath, but the girl did not seem to see her. Much to Anna's dismay, however, the girl began to walk towards her, moving alongside the bleachers. Maybe she was planning to use the diving boards? As she grew nearer, Anna began to wonder if she could slip out of the pool unnoticed while the girl was underwater. She wouldn't be able to reach the locker rooms, of course, but she could hide in the bleachers until the girl went away...

The girl stopped at the place where Anna had left the bras and phone under the bleacher. Anna felt a surge of panic. If the girl took the phone, Anna would lost contact with whoever was holding her clothes to ransom! She poked her head out a little higher. If the girl tried to take her things, she was going to have to reveal herself and stop her.

"Strange." the girl said to herself. "She's not in the box and the goggles are gone, but she wasn't in the changing room. Unless...?"

Anna froze. This was the girl who was blackmailing her! The girl turned to face the pool, and she and Anna locked eyes. The girl grinned.

"Oh good." she said. "I thought I'd lost you."

Not knowing what to do, Anna stayed frozen in the pool as the other girl casually sauntered over to the lowest of the three diving boards. She climbed onto it, jumped up onto the board, and with exquisite grace dove into the pool with barely a splash. Fearing that the girl could see her underwater, Anna half turned so that the front of her body was pressed against the pool wall with her shirt clutched against her crotch. Then Anna waited. And waited. And waited. The girl was taking a long time to resurface. Anna turned her head to look just as the girl resurfaced with a splash and a gasp. The girl breathed heavily only for a moment or two, then began to swim over to Anna. She'd recovered her breath in probably 1/10th of the time it had taken Anna to do it.

"Hey there Anna." the girl said. "Nice goggles."

Anna turned to face her. "I have a feeling they're yours...?"

"Natasha." the girl offered. "And yes, they are. But keep hold of them for a sec."

The girl reached the ladder on the opposite side to Anna, only a foot or so distant. She reached up to grab the ladder and there was an odd 'smack' sound, like wet material hitting something solid. Anna looked at Natasha's hand, and her eyes widened. Natasha's fist was wrapped around the steel ladder handrail, but bunched up between her fist and the metal was some sort of bright yellow material. The same colour the girl had been wearing. Anna looked down, and although the water hid the details it was clear to see the girl was no longer wearing her swimsuit.

"Duck under." the girl said with a smile. "And that's an order."

Anna was not sure why the girl was doing this, but since she had control over Anna's clothing she decided to comply. It was, she told herself, for no other reason. Gripping the rungs of the ladder she pushed herself beneath the water. Natasha, she immediately noticed, was in great shape. Her stomach muscles were very clearly defined, and where her leg braced itself against the ladder she could see the calf muscles tensing with practised ease. Natasha was small chested with her A-cups barely standing out, and she looked to be smoothly shaven down below. It was difficult to tell, however, as the girl's fingers were in the way. She had reached up behind herself with her hand pressed between her legs, and her fingers were busy massaging her own pussy. She was masturbating! Anna let out a gasp, which filled her mouth with water. The air bubbles knocked her goggles out of position, putting pool water in her eyes. She quickly resurfaced, coughing and spluttering.

"You liked it, huh?" Natasha asked.

Anna couldn't respond. Still coughing, she wrapped her shirt-holding arm around the ladder and used her free hand to lift off the goggles and drop them into the water. She rubbed the water out of her eyes. Beside her she heard gentle splashing as Natasha was doing something in the water. After a few minutes she regained her composure and turned to face the other girl. Beneath the surface, Natasha was now bright yellow once again and was treading water not far away.

"I don't want to waste your time," Natasha said "So I'll try to keep this brief. After this current class - which, by the way, you're skipping right now, naughty girl - we have a study session and a final lesson. The way I see it that's two time periods and two items of clothing remaining. You'll probably want to use the rest of this session to get yourself and your shirt dry - although maybe not! Maybe you want to spend some time here with me, trying to convince me to remove my swimsuit again."

"Why can't you just give me my clothes back?" Anna asked.

The other girl swam right up to Anna, pressing her body against hers, and answered. "When I saw you traipsing around in that French class, handing out tests in the buff, it made me so horny. And then your friend, Claire, just turning up like that too! God, it was so hot. I went to the bathroom to masturbate while the memory was fresh, and low and behold I just happen to find both of your clothes just sitting there! I had to take the opportunity and make this last as long as I could."

"It's not very fair on us, you know."

The girl backed away. "Well, neither is being a poon-tease."

Anna snorted. "A what?!"

"A poon-tease. You know, like a cock tease but for women? Stop laughing!"

But Anna couldn't. The phrase had just tickled her, for some reason. She floated, hanging from the ladder, trying to get her laughter under control. After a few minutes she regained her composure. When she opened her eyes, Natasha was no longer there. Anna looked down. The other girl was underneath the water... and Anna wasn't covering herself! She quickly rectified this. Natasha resurfaced wearing the goggles.

"Spoilsport." she chided.

"I'm not happy about this," Anna said. "But... two clothes in two time slots, right? The free study period and the last class of the day. Fine. What if I can't get them? And what happens to Claire?"

Natasha pressed her tongue against her upper lip in thought. "Hmm... well, the school empties out at the end of the day, but the school stays open for another forty minutes for after school clubs. I should know - I'm head of the swim team, hence why I have a set of keys to the pool. We're not meeting for practice today, though. Alright then. How about this? At the end of the school day I'll go to the two places where I've hidden your panties and your skirt, and I'll retrieve them if you haven't done so already. Make your way to the women's changing room and I'll return them to you, but my price will be one kiss for each item."

"And Claire?"

"Same. I was disappointed when I saw you enter the music room without her. Especially so since I basically gave her bra away for nothing. But if she meets me in the changing rooms I'll charge the same price. Does that seem fair?"

"Do I have a choice?"

"Oh, of course." Natasha said, her eyes wide with fake innocence. "Why, you can attend classes wearing what little you've been able to retrieve. The teachers didn't seem to mind when you were completely nude after all, so going bottomless shouldn't be an issue. It will be worse for Claire with just a bra, though, and not to mention the fun you'll have taking the school bus home. But that's a choice that's open to you."