Ah, that's better. What you ask for is the proverbial unicorn, but they do exist if you look hard enough (and spend enough money doing so, like I have).
I've tried most of the ladies mentioned in this thread, except for the AF ladies (they don't appear to qualify anyway), and none meet your stated requirements.
Miranda at xiao-dimsum.com is your girl. Her DT isn't absolute as it depends on your size, but if you're nearly 7 inches, she'll get close enough. I wrote a review of her when she was known as Sienna at Icon604 agency.
After her would be Haeun at Yumikolove.com. She's got a nice manmade rack, not as big as Miranda's naturals, but she can take your cock into her throat and lick your balls while she's doing it. She likes to watch herself performing the act in front of a mirror, too, which is hot.
Both have fair skin, Miranda is a mid-twenties student. Haeun is maybe mid-thirties(?). Both have a flat tummy and a nice ass, but they are built differently in that Miranda is healthy, muscular and kind of cheerleader thick while Haeun is thin and fit like a Yoga practitioner.
Both are fantastic.
Hope that helps.