Expecting too much, too soon from a stepparent can lead to disaster.
Sometimes children are naturally affectionate with stepparents but not always. So, let me make a suggestion to stepparents. Notice your stepchildren’s level of affection with you and match it. Find the kiss, hug, wink, wrestle, high five or fist bump they prefer and go with that. Today anyway, and trust that tomorrow might open the door to something new. When it comes to stepparenting small steps get you much further down the road than forcing really big ones.