"No, later's okay." He politely bows at the shop assistant as they leave. "Shouldn't I be the one carrying stuff?"

Apart from that fitting more into the picture of a slave he has, it just seems fair to him. Jade's paid for the boots, Shinjirou could at least -- literally -- take the weight off his shoulders. Shinjirou doesn't press the issue, though, just extends a hand should Jade want to put the bag into it.

"Next stop?"