Josh Duggar Cracks Molestation Joke Dating Family Is What We Do!

5/26/2015 6:07 AM PDT

Josh Duggar -- Cracks Molestation Joke ... Dating Family Is What We Do! (VIDEO)

Josh Duggar is from Arkansas ... so it's totally cool if he dates his siblings.  

Back in 2008 -- long before Duggar's molestation past came to light -- he made a quip during an episode of what was then called "17 Kids and Counting." 

Josh describes a double date scenario with his then-fiancée Anna ... he ended up going with 2 of his siblings.  

Josh explains, "We chose Jana and John David. We thought why not, have a double date ... We are from Arkansas!"

He then broke out in laughter.

Not so funny now ...