The outdoor pool

Looks like the girls were outside enjoying the outdoor pool you had installed last year. You grinned before heading upstairs to get changed into a pair of swim trunks. During the 3 weeks, school had let out for summer vacation and the weather was warm enough to warrant a cool swim. And thanks to your neighbors installing that tall gate, you won't have to worry about being watched. After getting changed, you head out the back door and catch the sight of Frannie playing with Alice in the pool. You look to the side and see Sarah dressed in a lime green bikini top and bottom lounging in one of the pool chairs. But there was a girl you didn't see before sitting next to Sarah. She was dressed in a simple black one piece, her chesnut hair pulled back into a simple tail, her skin lightly tanned.

"Um, Sarah, who is this." You said after coughing to get her attention.

"Oh! Mr. Doe! This is Tina Mullians, my best friend. I invited her to enjoy the pool, I didn't think you would mind."

"I-i-it's alright Sarah. If Mr. Doe wants me to leave, I'll go..."

"No, it's alright Tina. You can stay, just ask me next time Sarah. So, why aren't you girls in the pool with Frannie and Alice?"

"I'm not much of a swimmer..." Tina said

"I'm just working on my tan. I'll get into the pool later." Sarah replied.