How the Duggars Made All Those Babies

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The Duggars of Tontitown, Arkansas, are America's most notoriously fecund family. Michelle and Jim Bob had 19 children — all with names beginning in J — when their TLC show first aired in 2008, and they've since added three grandchildren.

At last, someone had the good sense to round up these people's sex tips. According to Page Six Michelle says complete availability is a must. 

“In your marriage there will be times you’re going to be very exhausted ... Your hubby comes home after a hard day’s work, you get the baby to bed, and he is going to be looking forward to that time with you. … Anyone can fix him lunch, but only one person can meet that physical need of love that he has, and you always need to be available when he calls.”

Like anything else, being fruitful and multiplying is a numbers game.