"Fuuuuuuuuuuuuuck!!" I screamed, as my body quivered like a 10 on the Richter scale. (The highest one ever recorded was only 9.5 in Chile in 1960, so this was crazy special.)

She kept grinding her hips, fucking me throughout my orgasm even as my pussy lips were being kissed again and again by hers.

"I'm not stopping until you come again and again, my pretty little slut," she promised.

Being called a 'pretty little slut' was a major turn on as I was a virgin just the previous day before being seduced by Megan, and I understand sluts fuck a lot. (And lucky sluts even more.)

I screamed, "Yes, Mistress,...