"Are you naked underneath?"

I hear myself saying, not knowing why I said that, or if I said that intentionally, how I worked up the courage to say that, so I blush a little bit, then look Millie in the eyes. She looks quite happy at my comment, running her hand along the front of the kimono, opening it slightly, giving me a near full view of her naked big tits underneath, but does not open it fully, instead she says:

"Naturally I am. I love the feeling of silk against my naked skin."

Then she walks over and sits down next to me, so close that our bodies are touching, taking my hand and putting it on her thigh, saying:

"Feel how soft it is."

I run my hand along the silk covered thigh of my step-mom, feeling her. It is something immensely sensual about the feeling of silk against skin I realise and I keep stroking her thigh.

Millie turns on the movie and leans back on the sofa next to me, letting her eyes linger on my face for a while, her face looking like she is thinking, or waiting for something. I feel to shy to do or say anything, so I just sit there, and after a few seconds she turns to face the TV, watching the movie, putting her hand on my thigh.

We sit there and watch the movie start. I am too turned on by sitting next to my big titted step-mom like this, her being naked except for the kimono, that I don't pay much attention to the movie. I want to make a move, some sort of move, but what?

My mind is racing, but then eventually I work up enough courage to squeeze Millie's thigh very lightly. A few seconds of anticipation pass, then I feel her squeezing my thigh back. A little jolt of electricity shoots through me, she is responding!

I squeeze her thigh gently, just to confirm, and she squeezes my thigh back. I turn to look at her and I realise she is already looking at me, like she was anticipating that I would turn my face towards her.