Batman BBW TG 4 (Patreon)

Batman: "Stop Harley, my back. It's breaking."

Harley: "That's okay, pretty soon you're gonna have a whole new one! The Joker loves me, but he loves you even more! Now he's gonna make it official with your new look!"

Batman: "What...agh!...are you talking about you loon?"

Harley: "Relax Batsy. We're just gonna give you a little makeover. That's all. We're even gonna send ya home after and let that venom settle in and works its magic. Then you'll come back and be ready for the J-Man!"

(Batman settles into unconciousness at the weight of Harley's ass and the gas that protrudes from it).