Many years ago, I was sent home from school early, and saw my Mother doing similar on her bed.....she had her dress and tan tights and panties on, but her dress was pulled up, and her hand was inside her tights and panties as she was 'humping' on her belly.....I could see her round bum clenching, and I admit that I got an erection as I stood by the door....she did not hear or see me, but I watched as she shuddered and grunted, and it was obvious she was having an orgasm......I crept away, then 'came home' and had to go to the bathroom and masturbate!
Mmm yes!!! This is exactly what I sound like when doing the same thing. That's how good this feels. Continuous moaning through the orgasm as it keeps coming and coming. I used to love doing this when I was little. So intense. I just lost control and had one right with her.