Austria is doing something that causes Germany to have to assist him, touching him in a way that makes Austria very aware of Germany's huge hands and is a big turn on for him. I'd like to see Austria make Germany do tasks either around the house or outside that makes him use his hands in gruff ways and makes him notice how big Germany is in other parts of his body i.e. arms, chest, height, ect.

Bonuses:

A) A lot of comparison between Austria's smaller, dainty hands and body to Germany's big, burly body
B) Germany has to lift Austria off the ground
C) If there's smut, emphasis on things like Germany's hand wraps around Austria's upperarm, holding Austria, Germany's hands wrap around Austria's waist, ect.