Judgments about Zack rushing into fatherhood aside, fans will learn that he is actually infertile.
And according to TVLine, the newlyweds are looking to Leonard for some assistance in that area.
When Zack and Marissa show up, they will apparently announce that they’re trying to have a baby together.
Here’s the deal, which is a tad more complicated than Brian Taylor Smith’s Zack Johnson coming back specifically to show off his new romance to try and make anyone jealous.