I totally agree that its the ultimate control feeling that a dom gets when their subs starts begging and you can see the look of desperation on their face and plus it sometimes brings out the "animal" in them when they beg and i tell them to show me how badly they want to cum for example and they show me by doing the wildest craziest things to me that I finally say yes to me. And plus its fun to repeatedly say no and plus i cant just give in just after a sub starts begging, they would have to continue begging and teasing me till I cant take it myself with passion and excitment that I finally say yes to their begging... And it does reveal who the brats are since I have in the past experienced that some subs would just tell you 'f*** it and make themselves cum for instance when they are being held on the verge of cumming and just cant take it anymore.

I dont know begging just gives me a good feeling knowing that my sub is obedient and at my call that when i say no to her begging, she wouldnt just throw a tantrem or whimper immensely but continue to pleease me soo I would actually reply yes to her begging and that she knows that begging is not some quick way for me to let her do what she wants..

Hope that helps and I didnt ramble to much!