"It's ok mom" I nervously said, "I'm gonna try to go to sleep"."Good idea, honey." she said as she patted my hand which was now resting right below he... tits, one of them actually lying on top of my fingers. She squirmed a little more and my dick flopped right into the crack of her ass. That actually felt more comfortable, but made me even harder. There was no place for me to go. I couldn't even turn over. I was stuck there with my full hard on rammed into my own mother's ass crack.After five. Apparently the opposite happens for her because I can feel her orgasm in just a few minutes. Her insides grasp me even tighter, she yells, her body jerks some, she wraps herself to me even tighter. I keep on fucking her, pounding into her. We’re both sweating. She’s making faces that could be of pain but I know they’re really of arousal. She grunts with each of my strokes. I must fuck her for fifteen minutes, it seems like hours. I finally push as far into her as possible and hold it there as I. I feel the gaze of the young lad in the ticket booth follow us up the stairs - I can only imagine his eyes are firmly riveted on the seamed stockings running up to the extremely short skirt I'm wearing. I consider pulling down my coat to cover the fact that he will definitely see the stocking tops and suspenders, possibly even the soft curves of my bottom - but why bother; he looked like he needed some excitement in his life!The old wooden fire doors creak as they swing open and we go inside.. " "Well son, I really don't know what to say. So you really enjoy looking at me naked then huh?"The blankets had now slid down her body exposing both breasts. She was totaly aware of her exposure but made no attempt to cover up.This caused my cock to raise to full attention. At that moment, I was bound and determined to fuck my mother this very night.I slid a little closer to her so that my hard on was just lightly touching the outside of her thigh. She actually responded by shifting her leg.