Gotta say, I share your penchant for women begging to be treated sluttily; hot for sure. Kianna and Jenna Haze are a couple of safe bets.
But ya know, in my experience, most any woman that's being properly fucked senslessly is gonna beg to be treated like a whore, ekeing out "Fuck me!" during relentless delicious poundings.
You also might wanna check out girls that are naturally submissive---it's generally in their nature to ADORE being treated that way.
Best o' luck!
(Freeones is almost third on my best pals list. And climbing.)