She's definitely on the adventurous side with her size-queen toy chest and happy willingness to dance in black nighclubs. You have good reason to be optimistic for further adventures, but you also have to remind yourself to be thankful for what you've got if it doesn't go any further. There are probably a lot of cuck fantasists who would be thrilled just to have a girl who does these things, so treasure what you have and go slowly into the next adventure.
You said your experiences in mostly-black clubs were "mostly" her grinding on you? So has she ever danced with a black guy at all? Or was it just not "sexy dancing?" The most obvious next step for you is to encourage her to dance with black guys. I'm sure you'd find the sight gratifying and of course she would quickly learn to enjoy it! Maybe make a fast friend with some black guy there, or even see if you can meet a black couple and innocently swap partners (no harm in you dancing with a black girl either). Don't make her feel self-conscious if she's a little uptight at first. She's already comfortable being in that environment, so I'm sure with a little persuasion and maybe a moderate beverage she will soon get much more into it. Don't push too hard: just some light and consistent encouragement, a little teasing. You don't have to make a big production or start begging and pleading. Just gently tease her, let her see that it wouldn't bother you and encourage her to go with the flow when you go out next time.
Also, since you give actual dimensions on her toys, keep in mind that no orifice is a galactic black hole and few men are as big as a galaxy. She's already pretty much taking on as much girth as any mortal could ever want. So don't get disappointed if the real deal falls a millimeter short of your manufactured items! Flesh and ******* always has its advantages, and doubly so if it's BBC. Good luck!
