I was cleaning out the skimmer when I heard the screen door slam. I rose, spun around and saw Tammy and Becky. At first I was captivated by Becky's prodigious rack, but then I noticed while I stared at her, she stared at me, or more specifically my semi-erection. Without thinking, I dove into the pool and began swimming.

"Did you see that?" Becky asked Tammy.

"Ah-huh. I told you he was big." Tammy walked to the edge of the pool. "Hey Johnny. What're you doing?"

I stopped swimming and began treading water, working my way over to where she stood. "Just swimming laps."

She scrunched her nose. "In the nude?"

I…ya always wanted to skinny dip in our pool, but your mom or Dad always seemed to be home.

I looked at Becky who'd sidled up to Tammy. "Hi Becky."

Her smile was coy and her voice, flirty. "Hi Johnny. I love your outfit. It seems so unencumbered. Isn't it Tammy?"

"Very," she agreed.

I frowned so much it scrunched my nose. "Very funny, girls."

"No, Johnny, I was serious. I would love to skinny dip. Would it be all right if we took our suits off and got in with you?"

Is she kidding?

Before I could answer, Becky stripped naked and Tammy followed. While they headed toward the steps at the shallow end, I waded toward them. I watched as my sister and her curvy friend descended into the water. It was a bit cold so they took their time immersing themselves.

They were like two wet dreams coming to join me in a pool of lust. Tammy was slender and statuesque, a true model type. Becky was almost the opposite, a few inches shorter, with a tiny waist sandwiched between large, upturned hooters and a fabulous rounded rear end. Like the kind of woman you'd go ape over at a topless bar. Damn, I wish I had a camera.

I waited for them as they entered the pool, then waded slowly into the deeper water toward me. Each wore a naughty smile as they drew closer. I licked my lips.

They sidled up and wrapped their arms around me. How the hell did I get so lucky.