Crossdressing is so not my kink, but the reddened bum showing underneath that very short skirt? Ooh, yes, that's very much my kink! ;) This is very hot and at the same time tender and quiet, conveying strong emotions of love and trust. I really like how I could interpret your title to refer to either Snape or Harry. Though I'm leaning towards Snape? I love the colours as well and the "scratchy" texture really adds to the mood of the scene. And your Snape is a great mix of ugly/sexy/real. Well done! :)