Reveal yourself

You make sure to get a quick bit of video of her masturbating and talking dirty about 'the boy her Daughter tried to hide.'

Since she's close to orgasm, you act quickly though.

You open the door and she looks at you.

In a panic, she goes to yell, but quickly stops herself.

She covers up with her dress and looks nervously at you.

"It's not what you think."
"Let me tell you what I think it is. We'll see if things match up.
You realized that Alison hid me after we fucked. You fantasized about me fucking you next.
That about right."

A long silence.

"...yes."

"It's alright. It sounds like you aren't getting any lately."
"Her Dad...my Husband is a great man...but he doesn't see me as a woman. I tried different things to get him to act.
Sexy lingerie. I even died my blonde hair brown- just to see if the shock might get his attention.
Nothing!"
"That sucks. How about I give you what you were fantasizing about?"

You reach down and unzip your fly.
You pull your obviously hard cock out for her.

"I'm not leaving him for you- if that's what you're thinking."
"Nah. I just want to have some fun. Give me a sign if you're interested."

She thinks for a moment.
Without saying a word, she changes her grip on the dress and lets it fall down, exposing her tits.

"Our little secret."
"Not so little from where I'm sitting," she replies.

You walk inside and close the door.