Step-children are children who are not biologically related to one of their parent's partners. This relationship often arises when a person marries someone who already has children from a previous relationship. In these families, the step-parent may take on a parental role, providing care and support to the step-children. The dynamics of step-families can vary widely. Some step-children may develop close bonds with their step-parents, while others may struggle with feelings of loyalty to their biological parent. Communication and understanding are essential for fostering positive relationships within step-families.