And people wonder why stepmothers get such a hard time on here.
from this thread it’s not hard to see.
Imagine if this was a stepfather wanting the mother’s actual children to stay away from his new baby while he got to know it.... bet there wouldn’t be the tolerance on here for that, no didn’t think so.
At the end of the day, while the SM isn’t obligated, the teenager and the baby should be of equal priority to the father, and if you marry someone with existing children then yes, you lose the right to decide that those children, your baby’s siblings, can’t meet the new baby if the father is on board with it. And no, it’s not the same as a MIL, these are children who will likely feel pushed out by the arrival of half siblings especially if they are then kept out of the equation.
So while I wouldn’t blame the SM, I would definitely be pissed off at the father if he hasn’t given any indication as to when the OP’s DS can meet his sibling.
And I’d bet any money that the SM would be the first to complain on here when the teenage stepchildren show no apparent interest in the baby down the track...