Donkey Semen Drinking Arrives on Primetime Courtesy of NBC

Anyone with even a cursory knowledge of NBC’s “Fear Factor” knows the show isn’t for the faint of heart. Or, for that matter, anyone with a semblance of pity for their fellow man.

“Fear Factor” combines outrageous physical stunts – don’t try this at home, or this … or this – with dares you wouldn’t pin on your enemy. Yes, eating some bugs can be nutritious, but there’s a good reason 99.9 percent of us choose Big Macs over Cockroach cupcakes.

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The show’s latest gross-out stunt nearly got spiked by NBC suits. Even network executives had to think twice about approving an episode where contestants gulp down donkey semen. But the show will go on as scheduled.

Sources involved in the production tell us the stomach-churning stunt was shot last summer — but NBC honchos were having a tough time swallowing this one as the air date approached.

We’re told the challenge involved teams of twins drinking the full glass of donkey semen — with a glass of urine thrown in for good measure. Contestants had to drain both glasses in order to move on to the next round.

Our sources say NBC execs had multiple pow-wows in the months after the stunt was shot … but eventually gave FF producers the thumbs up….

The episode airs this coming Monday — and yes, we’re told multiple contestants actually do (gulp) drink up.