Ella surprises Amy

Amy grabs a towel and heads back out next to the pool, and grabbing a towel, Ella follows.

"Wait, aren't you going to get dressed now?" Amy asked, "Isn't that why you went out to the ice cream truck naked?"

"It was...but, well after talking to David and thinking about it," Ella ran a hand over her exposed skin, "I think I like being naked."

"Really?" Amy said failing to stifle a laugh, "After all that complaining you decide you like it?"

"Yeah," Ella said feeling free for the first time all day, "besides, I think I'd like to avoid tan lines this year."

Ella put down her towel and laid out in the afternoon sun, Amy had her top's straps pull down to avoid some tan lines of her own. The girls talked for a while but eventually fell silent as they relaxed. A small timer chimed every so often to remind the girls to roll over to keep the tan even.

Ella lost track of time, but knew what time it was when she heard the sound of a door opening. Amy breathed a few profanities under her breath as she stumbled over to Ella and dived into the pool with surprising speed. A few moments later, Amy's mom came into the house followed by Amy's dad and Matt, her little brother.

"That was close," Amy said softly.

"Close!" Ella said turning to Amy, "I am still naked! and my clothes are upstairs in your room!"

"I will fix this," Amy said sounding calm, "just don't leave the pool."

Just as Amy was about to get out, her mother stepped out back. "Good afternoon Ella. You girls have fun today?"

"Yes ma'am," Ella said clinging to the side of the pool closest to the backdoor trying to hide he naked body. Luckily her hair was hanging over her shoulders and would be hiding her swimsuit straps.

"Good, I am about to start dinner," Amy's mom said, "so don't stay in there too long."

"Alright," Amy said to her mother. "Ok, stay here and try not to draw attention to yourself. I will go grab your suit and a towel," at this point, Ella noticed one of the towels they had been laying out on was gone. She looked in the pool behind her and saw it being held under Amy's feet. "I will say you forgot your towel. Mom doesn't want us walking inside while dripping so she will buy it I hope."

Amy climbed out and after quickly drying off, she made her way inside. Ella was now alone. Naked and alone, in someone else's pool. Outside. One of Ella's hands moved between her legs, and Ella couldn't fight it. Heat had been growing between her legs ever since David saw her naked. Now Amy's family was inside and standing between her and any cover except a wet towel that Amy had hid in the pool. Ella grabbed it and tossed it behind a chair. It was useless wet anyway. As Ella's hand continued to work, Ella noticed that Matt had started looking at her from just inside the house.

Ella's breathing was beginning to get faster and heavier as she worked her hand into her wanting pussy. If she kept this up, she would be caught, but she couldn't stop. Matt was now moving closer to her. Soft moaning was beginning to come out of her lips. Matt opened the back door and opened his mouth to speak, a voice called from inside.

"Matt! Help your father with the groceries," called Amy's mother. Ella lucked out as Matt turned on the spot and moved out of sight.

Ella was done fighting this, she needed it. Ella turned around and sat down on the step that ran around the pool. As she sat, the water came up to Ella's neck, but no higher. Both hands free now, one continued to tease and pleasure her sensitive folds while the other found her heaving chest. The water splashed lightly as she worked her body in broad daylight, but she didn't care. Ella began moaning softly despite trying to stay quiet.

"Are you crazy!" Amy said as a hand clamped over Ella's mouth to mute her moaning. Ella could only nod as she worked herself up even more, no longer concerned about making sound since Amy was covering her mouth. "You have to stop, you can't do this now!" Amy said sounding very distressed now. Ella could feel Amy floating in front of her in the pool, and was too far gone to stop now. Ella shook her head to tell her friend this was going to happen, and she couldn't stop it anymore. "Fine! Just make it quick," Amy said resigning herself to this.

Ella continued to masturbate as the pleasure built up inside her. She intentionally delayed her climax as she thought about everyone who had seen her naked today, even if they didn't know she was. First, there was Amy, then David. Now Amy's mother and brother, thankfully they didn't know the truth yet, but she thought about them walking out and seeing her now. At last Ella came. Her body thrashed and the water splashed around her as she came hard and her mind blanked. After several long moments of blinding pleasure, Ella's body went limp. Amy caught her and held her head above the water.

"Good thing I'm here or you might've drown," Amy laughed, trying to ignore the feeling of Ella's hard nipples against her skin, the feeling of something wet that wasn't water being pressed into her leg from between Ella's legs. "Alright crazy girl, we need to get you dressed. Now!"

After recovering a few more moments, Ella recovered enough to get dressed with Amy's help. and they headed inside. After dinner, Ella and Amy sat in Amy's room and talked.

"I guess I have to let you know next time we can have the house to ourselves," Amy said casually.

"Why do you say that?" Ella asked curiously.

"After that stunt, I doubt you will want to give up skinny dipping," Amy said with a giggle, "just do me a favor and let me know before you need to relieve yourself like that, and don't hold it back so long we almost got caught."

"Deal!" Ella said.