Are Venus's son and daughter biological?

Venus's son and daughter were adopted. Venus was a boy before she changed sex. At the age of 23, Venus married his wife Ken Bolin. That marriage has only legal effect, but no practical significance.

Venus adopted three children, two sons and a daughter. Her eldest son's name is Dudu, her second daughter's name is Nini and her youngest son's name is San Xiao. She once explained in the program that she can't have children because she is a transgender. But she still chose to adopt children, treating them as her own, and made great efforts and sacrifices to take care of them.