[Shell is already pulling back as soon as he feels that tug, his face messy with blood like a child that's gone to town on a strawberry sundae. He nods, then looks down at the wound -- and pulls a handkerchief from his obi and presses it to it.]

H-Here. Keep pressure there, I'll go get a first aid kit.

[Unlike before, there's no unsteadiness at all when he stands, though it would take more than a single feeding to improve his complexion.]

[He'll have wiped his face a little when he comes back, but he'll need time to actually wipe the stains off -- which can wait until after Childe's wound is treated.]

There's no risk of infection, by the way. Our... er, saliva has antiseptic properties. The bleeding should stop soon, too. But I'll clean it anyway.

[This is headcanon but there is no other explanation for why they can chomp humans in the jugular and not make them die of sepsis or bleed out okay.]