Pretending to promote exercise guru Jimmy K's new workout programme Hottie Body Humpilates, Lindsay Lohan kept a straight face as she told viewers about the fitness regime shared by lions in the wild.
She said, "Lions spend their days hunting and their nights humping. Lions hump upwards of 40 times a night. I've spent thousands of hours watching them, so I know."
But it was Lindsay Lohan's stunt at the end of the commercial which had viewers chuckling - as Kimmel declared, "The Jimmy K programme is so affordable, it's practically a steal", the star added, "Allegedly".
The swipe was in reference to her ongoing legal troubles, which could land her back behind bars.
Lindsay Lohan is accused of stealing a necklace from a jewellery store in Venice, California in January (11), although she maintains the item was loaned to her.