[It's hardly all Jack wants, but he's willing to settle. Thought the invitation into the side street can't help but intrigue him. Less public, sure, but that works both ways. Might make Spike relax just enough to enjoy himself, perhaps.
Also? Narrower street with fewer windows mean walls. Jack's fond of walls. He follows Spike into the new street and once he's close enough he crowds him with his body (taller and broader, if not stronger) and a feral grin to back him against one of those walls. No hands – not yet – because it's more fun this way, to see what Spike will do.]
Come on, then, like you mean it.
[He leans in, close but not quite touching, and hyper-aware of the blood still slowly seeping out of that graze in his tongue. He's intrigued to see what effect it'll have on Spike.]