I do have a similar fantasy. It would be great to watch my girl worship a massive cock. The color doesn't really matter but it would ideally be like 14" long, very heavy, kinda floppy, uncut and extremely veiny. And not just a quick suck and fuck either, but really worship. To hold it in her hands, feel the weight of it, rub it on her face, kiss it, lick it, fondle it, and fawn over how big it is.