Swim after Millie and touch her tits

Millie swims away a few strokes, then turns around and looks at me, splashes some more water on me, then laughs again and looks at me.

I splash a small bit of water on her, then I swim towards her, and thread water next to her, then I realise she is standing on the bottom as the water is more shallow here.

Millie is just standing there looking at me, with a look that I perceive as quite horny. I move closer to her, and under the water my hands cup her big tits. Millie flinches a bit when she feels my hands starting to squeeze her big tits, but does not push my hands away, instead I feel her hand wrapping around my cock, and she starts jerking it under the water.

I close my eyes briefly from the pleasure, and when I open them I see that Millie has moved her face to within a few inches of mine and she is looking me straight in the eyes. My hands are busy squeezing on her tits, and she leans her head back, and starts jerking my cock faster and faster. Her second hand moves in and cups my balls, gently fondling them, and my breathing is very heavy now.

Millie sees the pleasure I am feeling from my facial expression, and a smile starts spreading across her facial features. Her jerking off my cock speeds up even more, and she whispers:

"Cum for me Matt."

And with that, I feel a surge through my balls, my cock starts to twitch, and I release my cum into her hands underneath the water.