"If it doesn't, I'll be here," Sirius reminds him, his heart lodged quite firmly in his throat as he pulls away a bit to meet Kieren's eyes. "Are you okay to apparate?"

Typically, Sirius doesn't bother asking at all, but given Kieren's state, he feels it's best to do so this time. It's quite a walk back to the flat, but one Sirius is more than willing to make if Kieren would prefer it.