She fondled my tits as I masturbated her, then she lied flat on her back and told me to straddle myself on top of her, sitting on her face so she could eat me out. Of course the towel was still too small to do this properly, so it hung lower above her hip and her right thigh was still in my plain sight. To my surprise, my sister ran towards me and grabbed my shirt with one hand and the doorknob with the other. But there was no doubt in my mind that she had masturbated quite frequently. I was the one who desired her, and yet they all had their opportunities to be with her while I never did.
Just my body.
Her neck flushed red and I saw just a bit of clear juice ejaculate out of her pussy. Her patch of dark blond pubic hair was suddenly very evident to me, as I had not taken much notice of it before.