She realizes what he's been aiming toward right before he leans forward and feels very foolish for someone who's supposed to be so cunning.

"Let", hah! She's wanted to kiss him for YEARS. She'd feel embarrassed about not knowing what she's doing with kissing him back, but his soft kiss has prompted such a flood of love-desire-pleasure in her brain that she can't really manage embarrassed right now.

She's not being subtle in the Force right now either,love-desire-pleasure together in a rising tide. Her hands tangle in his hair, an unconscious attempt to keep him close, to encourage him to continue with what he's doing.