4-panel comic by War and Peas.
Panel 1: A child stands next to their father and says, "Dad, there's a fat, ugly monster under my bed."
Panel 2: The father, leaning down, says, "Now, now, son..."
Panel 3: The father continues, "We do not fat shame in this house."
Panel 4: The father peers under the bed and tells the monster, "You are beautiful."

 

War and Peas - How I Met Your Father - Elizabeth Pich and Jonathan Kunz

War and Peas – My Father's Shirt – Comic