For a kangaroo forced to wear human clothes and fight in front of screaming audiences, this must have been a rare moment of satisfaction.
Rocky, a kangaroo which has long been used as part of a travelling circus based in Texas, is seen in a new video knocking a woman into a bin and then attempting to mount her.
But despite Rocky's apparently unnatural actions, Australian animal expert Tim Faulkner said it was actually a proud display of dominance over the humans involved.
"It's certainly something we wouldn't condone but it is actually naturalistic behaviour," said Mr Faulkner, who runs the Australian Reptile Park on the NSW Central Coast.
"Because what happens in the wild is that kangaroos fight for territory, and the winner gets the girls."
"It's normal for the alpha male to copulate with a female after a fight."
Rocky is the same kangaroo that was forced to fight a man in a clown costume at the Kraft-sponsored Texas festival Borderfest in March.
That clip sparked controversy across Australia and forced Borderfest to dump the show from their event.
This morning ninemsn contacted Rocky's owner, Javier Martinez, who said that the circus continued to operate with the kangaroo as their star attraction.
But he became defensive when asked whether it was cruel to force Rocky to perform at the circus.
"I don't have [anything to say] about it over the phone," he said before hanging up.
On the Rocky Show Circus website Martinez is seen grappling with the kangaroo, which is clad in full boxing gear.
Martinez is known to US animal welfare authorities, having been on their watch list since 2003, when two kangaroos he was caring for died within four months.
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