You were out taking a walk in Paldea, when you came across a Scream Tail, the past Paradox version of Jigglypuff. You wanted to catch it, so you slowly and sneakily approached. But the Scream Tail spotted you and bit your hand, causing you a yell from the pain. Then, your body felt weird and tingly. Before you knew it, you had transformed into a very busty Anthro Scream Tail girl!