He groaned as his sister "polished his knob," and he picked up the pace of his finger-f*****g up her cunt. His pent-up orgasm was building quickly, and he hammered away at her p***y the way he would be pounding his own c**k if he had it in his hand.
Suddenly, Dawn tensed up, let out a long squeal, and her cunt gushed around Kevin's jabbing fingers and all over his hand.
At the moment that she started cumming and her whole body tensed up, Dawn's fist involuntarily clenched around her brother's c**k-head. The tight grip wasn't painful, but it did halt his quickly-ascending orgasm.
Dawn let out a long, growled, "Ahhh!" as her brother continued f*****g his fingers up her gushing cunt and rubbing her excited little asshole.
After half a dozen or more p***y spasms, Dawn had to reach back and
