"One of the things that you argue about in a writing room… there’s the notion that you can never put your two leads together. And if you put your two leads together, the romance dies. Well, we put them together – we may have broken them up, but we put them together, and it’s fairly apparent in most of season four that they’re together – and I don’t think it hurts the show at all. In fact, I think it makes the show more interesting." - Ben Browder
Claudia Black extended this even so far as John and Aeryn’s initial meeting—the meeting that John lovingly refers to as “boy meets girl, girl kicks boy’s ass”—saying that the reason Aeryn reacts so violently to him is because it was actually love at first sight. The problem is, for Aeryn Sun, it could only be identified as a foreign emotion that resulted in confusion, so she believed her best course of action was to eliminate it… by eliminating the target responsible for eliciting the emotion. ~ from ‘Farscape Told Science Fictions Greatest Love Story’ Tor.com
Ben Browder and Claudia Black, the original shippers of John and Aeryn.
The chemistry between the actors clinched it. You couldn’t keep them away from each other nor did you want them apart. This made for fascinating television and a wonderful love story.