'Little House on the Prairie' actor defends age-gap kiss with teen Melissa Gilbert: 'Mothers were concerned'

Dean Butler struggled with anxiety after discovering that he would be giving his co-star, 15-year-old Melissa Gilbert, her first kiss – both on-screen and in real life.

The actor, who played Almanzo Wilder in "Little House on the Prairie," has written a new memoir, "Prairie Man," which details his rise to stardom and the age-gap scene that still raises eyebrows today.

"You just couldn’t do it today," the 68-year-old told Fox News Digital. "There would be way too much blowback. It’s...