Surprise on the toilet

I found my way to the toilet and took a piss, then washed my hands. Then I heard the door open. That wasn't unusual, I never locked the door at Gina's place, since we were so close. I didn't mind if she watched me pee.
But it wasn't Gina who walked through the door. It was Nathalie, her mom, completely naked.
I stood still in disbelief.

"Ohh, John! I didn't know you were in here, I'm soooo sorry." She absolutely wasn't. "And I am absolutely naked, what a predicament!"
'She wants me. I can't believe it, she wants me!', I thought to myself.
"Why don't you make this less embarrassing for me by undressing yourself? That's only fair, no?"

I gladly followed that suggestion. As I undressed, her eyes were glued to my body, especially my dick (duh). She bit her lip as she looked at it. Her hands moved up and down her body, occasionally stopping at her breasts to squeeze them.

"Okay, enough teasing, big boy. Show me what you got!" Her tone changed. Her voice was now full of lust. She absolutely wanted me.