Well he tries to be stealthy, but with a lovely bottom so near, and feeling he ought to protect it already, he figured he might as well have a more selfish, personal reason to do so too. No matter how its sugarcoated though, he saw a lovely woman, she may be human but he's not looking at just for other elves, so the rogue went and felt up that tush, now seeing if it costs him life, limb or what.