4-panel comic by War and Peas.
Panel 1: A watermelon with a stern face floats in the middle of a blue background. The caption reads: "The Seedless Watermelon."
Panel 2: The watermelon now has a serious expression and says, "If I cannot reproduce..."
Panel 3: The watermelon launches itself groin-first at a human, shouting, "...neither will anybody else!" The person screams in pain as the watermelon hits them with a loud "POW" in the crotch.
Panel 4: The watermelon bounces away victoriously as the person curls up on the ground. The caption above reads: "Another triumph for the seedless watermelon."