Sheldon really messed him up big time.

Seeing him stare silently, Tilda adjusted her glasses and suggested, "Since you're already wet, you might as well shower. I'll clear out the bathtub for you."

She then walked past him into the bathroom.

Lyndon stayed quiet. He didn't change his trousers but grabbed clean clothes and prepared to shower.

Inside the bathroom, Tilda was drying Sheldon off, getting him into his pajamas, and giving him a playful spank.