Duggar Drama! Reality Clan Shuns Anna’s ‘Wild’ Unwed Sister Susanna For Getting Pregnant

The Duggars celebrate every baby their loved ones churn out — unless the little one is the result of premarital sex.

OK! reports that the squeaky-clean reality family has turned their back on 22-year-old Susanna Keller, the once beloved younger sister of Josh Duggar’s wife, Anna.

The reason? A source reveals to the magazine it was bad enough that Keller didn’t fully embraced the family’s strict fundamentalist Christian beliefs — but the final straw that made the clan turn on her came as a result of Keller giving birth to a baby girl out of wedlock in 2013.

Worse, Keller, who sometimes appeared on the then-titled 17 Kids and Counting back in 2008, decided not to marry her daughter’s father.

While Keller once was considered worthy enough to act as Anna and Josh’s courting chaperone before they tied the knot, according to the source, Keller’s slide into sin resulted in Duggar patriarch Jim Bob sitting in judgment and striking even the mention of her name from the family’s show.

“It would be bad for the Duggar brand,” explains the source. “She broke away from everything his family represents, so viewers shouldn’t expect any televised trips to visit this in-law.”

And don’t expect to see anything so distasteful happen to one of the Duggars’ own, adds the source. “Jim Bob has his RadarOnline.com up for any hint of rebellion.”