Severus tsked disbelievingly at the licking. "I must be insane for ever letting you into my research labs, if that's your idea of hygiene," he grumbled, throwing a wandless Scourgify at Al's glasses.
He finished his coffee, Scourgified himself and the bed free of stray splatters, and only then stood, stretching, utterly unconcerned by the new additions to his extensive collection of scars. "Bathtime, I think." As he sauntered away, he threw a smirk over the shoulder that had been burned the night before. "Coming?"