Millie goes for a swim

"Do you think you can control your hormones Matt?" Millie says from behind me, and as I turn around I realise that she is standing there topless.

I just stare at her and her big tits, feeling a boner grow in my shorts, and Millie smiles at my reaction, and then she runs into the water. She swims around for a while, then I see her reaching under herself and she throws something pink back onto the beach. It is her bikini bottoms, she is naked in the water, and my boner is now raging in my shorts.

"So nice with a 'private beach', come join me." Millie shouts from the water.

I want to go into the water. I am really warm from the kayak paddling, and more importantly, Millie is in the water naked, but I have a massive boner, and Millie will see this if I take of my shorts before I go in the water.

But then, she is in there naked, and I don't want to seem a prude.