She is curious about what he looks like under the armour, so she fakes an illnes that "will be healed if Grandpa comes in the bath with me", and so he does
What Gramps looks like under his armor, it's really on my mind...Even if I gave him a straight "take off your armor", he probably wouldn't take it off...There has to be a method of getting him to take it off while concealing my intentions...GWAAAA!!Owie-owie!Hast thine ailment abated?My stomach has a mysterious pain!Perhaps the only cure is to get in the bath immediately with Gramps?!Ah, yeah.