Bart Johnson and Robyn Lively with their three children, including Kate Johnson (centre). Photo: @robynlively/Instagram Kate Johnson has two siblings named Wyatt and Baylen.

Expecting her fourth child with husband Ryan Reynolds, Lively's pregnancy announcement ... The shared images featuring Ryan Reynolds, her sister Robyn, and friend Taylor Swift, paint a picture ...

Robyn Lively is standing by her sister ... "The emotional impact on Ms. Lively has been extreme, not only affecting her, but ...