Trevor, like Nicoletta, seems hesitant to get dressed, although they usually wore maid's uniforms when they were in the office - although lord knows the staff saw them in varying states of undress often enough. He smiles softly when the window dims - it is enough to reassure him, and its massively flattering that Mistress took the time to design it. She could have just said "Deal with it kitten" and he would have spent his days huddled closely to her feet.