Cliff sex! So alluring—yet so dangerous, as one young Australian woman found out early on New Year's Day. From her brother.

An 18-year-old Aussie apparently scaled a fence with a daredevil paramour sometime after midnight on New Year's Eve and quickly got to, in the poetic words of the NT News, "happily bonking away." When, suddenly, her brother arrived, and "became angry." The poor cliff-loving Aussie "jumped up, stepped back, lost her footing and plunged over the cliff." She was later winched to safety by emergency services.

And with that, we can add "a cliff" to our list:

Places You Shouldn't Have Sex

[NT News via Fark; image via Shutterstock]