"No"

I decide to answer, not wanting to seem too inexperienced in the eyes of my big-titted step-mom that is laying naked next to me.

Millie's eyes look like she is quite relieved at this answer, but she does not say anything, she just nods, then closes her eyes and lays down again.

We lay like that for a while, then Millie gets up, goes to pick up the cooler from the kayak, and we sit down in the shade and eat the sandwiches she has brought for lunch.

Millie has packed several frozen bottles of water at the bottom of the cooler, and when she notices I am looking at her through the corner of my eye she pours cold water over her tits. My cock grows hard as a rock instantly at the sight of this, and Millie starts to laugh.

I laugh too, not sure what to do, and we sit there laughing for a while, and then as the laughter dies down, we are left just sitting there looking at each other.

I want to say something to break the silence, but what do I say?