I've seen several bizarre, sexually disturbing, yet more-than-a-little titillating comic book panels featuring the Dark Knight and the Boy Wonder, but this one is new to me.
New to the adult me, anyway. I'm sure I saw this panel when I was kid. It explains so much.
To all the guys who wondered why I brought them back to my place, turned down the lights and asked them to join me in "puncturing" a watermelon painted to look like a giant lemon, here you go.
This explains it. It all tracks back.