Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 5 months ago

Bismihi ta'ala

A "step-father" should aim at trying to become a father figure for his wife's children, and treat them like his own children. One positive way of treating children is by showing affection and loving care, through kissing the children, hugging them, and treating them in the best way possible. 

And Allah knows best.