「Silk... Don't take off my boots.」

「But Lain... Your feet are really sweaty.」

「And... you are licking them now.」

「Don't you know? Saliva has antibacterial properties.」

「I... of course I know that...」

「Which means, I can make them smell nicer by licking off all that sweat.」

「Eh? Uh... thank you, I guess?」