Grandpa Gruff usually doesn't mind when Grandma Grizel gives him a hug or a cheek-peck or calls him by the nickname "Gum-Gum" (it's actually semi-acceptable when she does). However, he really doesn't like it when his best female friend/ ex-accidental fiancée hangs a mistletoe above his head and stands beside him. But he tries to be a gentleman and not make a scene. Their grandchildren have opinions on this!!! XD Gerard is aware of his grandmother's crush on Grandpa Gruff, and although he does like the idea of the elder becoming his step-grandpa one day, he doesn't mind the current state of his bond with him, and often gets very embarrassed by his grandmother's flirtatiousness when she's around Gruff, to the point of feeling forced to apologise for her pushiness on her behalf. Gallus on the other claw generally doesn't like it when others try to flirt with his grandpa. Hope you like it!