One goes "ribbit ribbit", the other goes "rub it rub it".
A woman wants one man to satisfy her every need...A man wants every woman to satisfy his one need.
One's an object that's easily abused, the other's a drug.
Because she wouldn't rub it rub it. (blame Happy International Bacon Day)
There was a frog in her throat.
Rub-it!
You rub them the wrong way