Naael didn't struggle; after all, she was supposed to be enjoying this, to help solve her problem... and it wasn't exactly as if this was objectionable, anyway. She trembled a little, at the delicate teasing, shivering as the fingertips brushed her sex. She returned the kiss, perhaps with a little less enthusiasm, but obviously still eager, her own hands reaching up to run along the succubus' side, and brush her wings, gently.