This is sorta what I imagine when I think about a lust dragon :V
but you have no context.

Trip told me about this book for D&D, called the Book of Dragons, that has some interesting dragons in it - in particular some based off of the deadly sins. I was all ":O lemme see"
but when we went to go grab it it was already gone :<

but this is what I was thinking anyway. It's breath weapon would be a cone of pheromones that disorient and charm anything unlucky enough to be caught in it (or lucky, maybe?)
I'm thinking they'll probably have a small group of charmed persons, monsters, and maybe other dragons hanging around their lair for when urges strike - and when all else fails, his hoard of porno mags.

He IS a lust dragon.