Once, when I was about 20 and sitting on the couch visiting home, I was alone with my sister, me in nothing but a bathrobe, her in nothing but pajamas. She climbed on my lap to show me a magazine, though I whisked the whole obscene thing away.
By this time I was in a state of excitement bordering on insanity; but I also had the cunning of a madman. Sitting there, on the sofa, I managed to touch my penis to her legs by a series of stealthy movements. It wasn't easy to keep her distracted while I performed the obscure adjustments necessary for my success. I kept her distracted by speaking quickly while I cautiously increased the friction.
Her legs twitched a little as they lay across my live lap; I stroked them; every movement she made helped me to conceal and improve the secret system of tactile correspondence between beast and beauty - between my gagged, bursting beast and the beauty of her dimpled body in its innocent cotton frock. I felt her tiny hairs bristle ever so slightly along her shins. I entered a plane of being where nothing mattered, save the infusion of joy brewed within my body. What had begun as a delicious distension of my innermost roots became a glowing tingle which now had reached that state of absolute security, confidence and reliance not found elsewhere in conscious life.
The day before she had bruised herself, and now I pointed it out to her; my huge hairy hand massaged and slowly enveloped it - and because of her very perfunctory underthings, there seemed to be nothing to prevent my thumb from reaching the hot hollow of her groin - just as you might tickle and caress a giggling child - just that. "Hey, it's nothing!" she cried with a sudden shrill note in her voice, and she wiggled, and squirmed, and threw her head back, and her teeth rested on her glistening underlip as she half-turned away, and my moaning mouth, gentlemen of the jury, almost reached her bare neck, while I crushed out against her left buttock the last throb of the longest ecstasy man or monster had ever known.
And she never knew that I had effectively used her legs to masturbate.