I simply use tactics of high deception. I use a voice altering device to sound weak and corny on the phone. Then I use a special, super sleuth flesh paint to change my skin to 'look' white, asian, or any currently accepted demographic. I use fake flesh around my groin to make my huge black wood seem really small (hard to fake the excessive girth, but minimal length exposed makes it all believable). I do all this to set things up, go through the act and then reveal myself in the end. Something like:
Me in a disguised voice: Hello, is this____?
NBA provider: yes, this is.
Me: Oh, lovely. I'd love to spend an hour of pleasurable company with you.
Her: You're not black or anything are you, because...you know, I really hate 'those people'.
Me: [fake hearty laugh] No, darling. No way. Buncha savages, I tell ya!
Her: What's your name, btw?
Me: Err, uhhh [clearly stumbling to make up a fake name] D-Duke Br...radford. Yeah, that's me. Ol' Duke Bradford...from, Manchester...Tex-as. Yeah.
Her: OK [giggles]. You sound safe. I'm at ______ (gives me her location)
I arrive, with a cornball wig and obviously fake mustache and non matching attire.
Her: Oh, you look just like I pictured you.
Me: So do you, darling. Very nice.
[We do the do, afterwards, while happily basking in the afterglow, she comments]
Her: You felt so big when we were doing it. Wayyyy too big for a (____)whatever fake identity I was using on that given day).
[At that moment, I jump out of the disguise]
Me: That's because I'm as black as night, and I'm really RAMBRO CREEEEEEEED!!
Her [gleefully surprised]: Oh, Rambro! You liar. You got me. You better not tell, or I won't let you (whispers something to me in my ear) again.
Me: Oh, OK. You win. I won't say anything.
[And we fuck again...happily ever after]
And THAT, my friends, is how it's done.