
Supergirl vs. The Plasticine Woman
The way they're posed doesn't look like they're fighting, just like... having a mild argument.
Supergirl's like "ARGH TELL ME THE SECRET ABOUT YOUR INVERTED STOMACH AND VACUUM-SEALED CLOTHES" and Superwoman's like "bodypaint... and I swallowed a black hole."
(Cover of Supergirl vol. 5 #41, DC Comics)