Reality stars Jim Bob and Michelle Duggar's conservative evangelical Christian beliefs are so extreme that they once forbid daughter Jill from helping a member of their extended family because the girl was pregnant outside of wedlock. On hit TLC reality series 19 Kids and Counting, the Duggars like to project an image of wholesome family values, but a series of incidents in recent months have revealed a darker side to the family's beliefs. The latest allegations concern Susanna Keller, the 22-year-old younger sister of Anna Duggar who is married to oldest son Josh. Scroll down for video The family's Christian beliefs are so extreme that daughter Jill, right, was forbidden from helping Susanna Keller, left, the youngest sister of Anna Duggar, when she became pregnant outside of wedlock in 2012
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The Duggar's Christian beliefs are so extreme that they forbid daughter Jill from helping Susanna Keller when she was pregnant in 2012
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Susanna, the younger sister of Anna Duggar, had become pregnant outside of wedlock and found herself ostracized as a consequence
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'Michelle and Jim Bob thought Jill shouldn't be exposed to an unmarried mother in that condition,' said a source
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A series of incidents in recent months have revealed a darker side to the family's 'wholesome' beliefs that they portray on 19 Kids and Counting
Michelle Duggar
19 Kids and Counting
Duggars
Duggar
Michelle
Earlier this month a lesbian couple staged a kissing protest outside the home of the Duggar family, the stars of TLC's @placeholder, who are well known for their Conservative Christian values and intolerance toward homosexuality.
Michelle Duggar
19 Kids and Counting
Duggars
Duggar
Michelle
And the @placeholder are fighting my right to do so,' said Barnfield.
Michelle Duggar
19 Kids and Counting
Duggars
Duggar
Michelle
Despite the couple's frustration with the @placeholder' stance on gay marriage, they say they are long-time fans of the hit show.