Preferably with the sex itself, but what I really want to see is Wilson struggling with all his feelings about this.

Getting so emotional he could cry every time he remembers the love of his life is expecting. Seeking reassurance from Vanessa that he's not going to completely mess up his own child like his father did. Generally not being ready for this and being an overattentive nervous wreck.

And then all the fluff or sex, sex would be good where Vanessa calms him down.