Jana Duggar is once again rumored to be dating family friend Caleb Williams.

Jana, the still-single 27-year-old Duggar daughter, and her twin brother John David, are the bane in the family, where children marry and have kids before the age of 25.

Next in line Jill already has two children with Derick Dillard, while 25-year-old Jessa also already has two with Ben Seewald. Jinger, 23, is married to Jeremy Vuolo. Joseph, 22, is married to Kendra Caldwell. Even 20-year-old Joy-Anna was recently wedded to Austin Forsyth, and they are now expecting their first child.

So what of the eldest daughter?

Rumor has it that Jana may also be heading to the wedding mill soon.

Williams, a family friend, has been hanging out a lot with the Duggars, as seen in photos from recent months, making "Counting On" fans think that he is courting Jana. When he went out with father Jim Bob to watch a football game last October, rumors escalated to a higher level. After all, the main rule for courting in the Baptist family is for the man to get the father's approval first.

The thing is, reports say Williams is not really Duggar material. In early October, Radar Online reported that Jana's possible suitor does not follow courtship rules, a big no-no in the super conservative family.

Courtship rules include only holding hands and giving side hugs when engaged. Does Williams do that? A family insider told Radar Online, "not really."

While the rumored suitor shares the same religion as the Duggars, he is said to be from a different church, which follows different practices. "He's a bit different in his thinking. He's maybe somewhat more liberal," the source added.

There is some hope for Williams, however, as most of the family seem to be rebelling these days. Mother Michelle was recently seen wearing pants, apparently a mortal sin in the family. Jill just had her nose pierced, and reportedly even had a tattoo. There are also reports that Joy-Anna got pregnant before she got married, with critics saying that her baby bump is so much bigger than it is supposed to be.

As of press time, no comment yet from Jana and the rest of the Duggar family whether the rumors are true.