"Oh god, Grandpa!" she screams. "Keep doing that!" I rub my thumb in a circular motion over her clit as she jounces up and down the entire length of my swollen shaft. Like a wild woman trying to tame a bucking bronco, she thrusts her insatiable pussy down on my stiff cock.

After all the fucking I've been doing, I don't even know if I can cum again but with us both bucking feverishly I start to feel the telltale signs of an imminent release.

"I'm cumming. Oh Fuck, Grandpa. I'm cumming! Cum with me!" Sam has lunged forward tightening her pussy muscles around my cock and is jerking wildly...