The look that Severus gave to Sirius was smouldering and half incredulous. "You're joking." No, it turned out that Sirius wasn't. "That's disgusting." Ah the sheltered life of one Severus Snape. He could t believe that anyone would do that. Not for any reason.

He grit his teeth and gave Sirius an impressive tug instead, going from feathery light touches to rather hard, demanding ones. Oh, he'd really like to hear his name again. Breathed out like that. It would be amazing... It gave him quite the boost of confidence!

"I always knew you were dirty," he growled, "but that's a bit much."