It's good that Tsukishima doesn't mind, because if he agrees to it, Kuroo will invite him over again. And again. That is, assuming all goes well, but since Tsukishima hasn't retreated away, back to the train and home upon seeing the house, he can't imagine that there's going to be too many bumps from here on.

"It's going to have you in it, that'll make it pretty cosy if nothing else does."

He unhooks the bags off the bike and drapes them over his shoulders instead, scrambling around for his key in his pockets. A smart guy would have found the key first, but Kuroo's sense is still tied up in his smile thinking about Tsukishima, and thinking about having Tsukishima here.

Eventually, he decides that this isn't working, and hands one of the bags off to Tsukishima. "Hang onto this for a bit?"