Oo-er. [--says Sirius, low and hushed and approving. There's a reason Remus is his favourite forever ("forever", no depressing thoughts here). He plays along. He doesn't try to shove Sirius in the face, which isn't a thought he thinks with an particular irritation, because he'd have licked Kate's hand a second later had she kept up with her shoving. There's always an out.

But this? This is better. And Kate is better than twelve million girls anyways, so any support her question might have gotten from Sirius in another time and place is quite nonexistent in the here and now.

He stops patting and lays his head on Remus, somewhereish, with his eyes rolled sideways-upwards to keep track of the action.]

'And when he said these words, Captain Kate knew, in the deepest bits of herself, that he was telling the truth. That every deck her well-muscled cabin boy had swabbed, he had swabbed for her. And she knew, too, that she could trust him to swab her good, 'cos she had watched him do all that swabbing, with muscley arms and sort of bony wrists, but she liked the bony wrists, 'cos, who doesn't. Yes, she could feel it'-- you can feel it, can't you? Sort of throbby--

[This is to Kate, whom Sirius swivels a look on, brief, to confirm, and then loses interest in confirm and just goes on--]

'She could feel it, a throbbing, deep in deep bits. And Lupin the cabin boy was looking so smoldery--' [He twists his lips sidewaysish to peck a dry kiss against the fibres of Remus' jumper.] Ssss, smoldery--ooh, nice-- '--And the force of her desire to kiss him was like-- mmmagnetic. Zzzzz.'

Do it.

[Wiggled fingers of compulsion.]