Never have been able do decide which image turns me on the most: Nude buns (and body) lying face down on the bed or nude buns (and body) walking in front of me. My favorite greeting of all time was by a gorgeous lady fresh out of the shower, and wrapped in a towel which she dropped as soon as the door closed. That wasn't my first visit with her, which may change the calculus. Anyway, that sorta calibrates me.
That said, from an aesthetic point of view panties can be a prop or point of emphasis, particularly in photos. Big difference too whether seen from the front or the rear. I tend toward the "less is better" philosophy. However, you can scroll through the photo board and find pics of ladies in full panties, garter belt and stockings that get me from idle to reline immediately. Miss MV right here is one I put there. And Miss B can do things to a string bikini that should be illegal. Hip and thigh shape, in addition to buns, are a huge factor in the look of panties. As with most things: "It all depends."
What I try to do is to ask the ladies to dress in the way that they feel the sexiest - hopefully they do that anyway, but I just like to reinforce it. Figure if they are already feeling sexy it'll offset, a bit, what happens when they step from behind the door and see the gnarly ole dude that stepped in.

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Happy Hobbying!
Posted By: XLTrojan
Damn, I love panties. After all, they are next to the best thing in the world. I'm always disappointed when the provider doesn't wear any. I love all types (especially black). Love G strings, although I can see where having a string up your crack isn't comfortable. French cut, bikini cut , boy shorts, they're all good. There's nothing sexier to me, than coming back from freshening up and seeing you there in only panties (and maybe heels) or maybe panties and low cut bra.
What are your favorite ?