A Young Voyeur's Pervy Adventures/Day1/Leave her bottoms alone
You want to undo the strings on her bikini and watch as it slips away, you really do, but to do something so pervy so soon would be foolish. For one she would undoubtedly know you has something to do with it, and for another she did promise not to rat you out. So instead you watch as she kicks off, diving under the water as she swims away.
You check to see that the coast is clear before leaving the pool and making a mad dash for where Wanda left her towel. You dry your lower half faster than ever before and waste no time putting your sleep pants back on. You sigh in relief at the feeling of regained modesty and take your time in drying off the rest of your body, sneaking glances at Wanda as you do so.
Soon you finish and head inside. You were just passing the stairs to check the downstairs linen closet for a new beach towel when you once again collided with someone. But rather than being warm and soft like Wanda's bare skin was, this was rougher and damp.
"Oh, Matt! I'm sorry, didn't see you there!"
You blinked are realized Penny was standing in front of you, wearing nothing more than a towel and a smile. You gulp, already feeling your lower region react.
"I need to be more careful," Penny continued. "Almost dropped my towel just now! That's probably that last thing you'd want, am I right?"
"Actually, I wouldn't mind."
Your statement may have been blunt, but it was the truth. You would enjoy it immensely. As to why you said it? Well, that you blame on getting off easy with Wanda giving you some extra courage. Either way Penny blushes and lets out a small laugh.
"Hehe, you're sweet, you know that?"
She leans down and kisses the top of your head, giving you a great view of her cleavage in the process. When she pulled back she looked mildly disgusted.
"Ugh, why do you taste and smell like chlorine?"
"I, uh, was playing with Wanda when I got wet. That's why I'm getting Wanda a new towel, see?"
You hold up the beach towel as proof for your half-truth. Thankfully Penny buys it.
"Makes sense. But you should probably go get a shower afterwards and wash that chlorine off."
"I will."
With a final smile Penny nods and enters the kitchen. You take the moment to look a bit closer at her "outfit." It was a large blue towel and covered her from above her breasts down to her knees, unlike your sisters who always seemed one wrong move from exposing themselves. This didn't change how attractive she looked to you just now, though. In fact, knowing she was still one wrong tug or slip away from nudity turned you on even more.
You look at you hand. You still need to get Wanda a replacement.
But after that...