Farscape - Season 3 Episode 12 -

Back on Talyn, John is trying to figure out whether Crais let Aeryn's mother, Xhalax, live in order to save his own skin, but is interrupted when Talyn goes head first towards the nearby sun. Talyn manages to pull himself from his course, but endures radiation damage. As the crew splits up for damage control, Stark notices a vapor flowing through the ship and begins to hear voices. John and Aeryn, at work repairing some of Talyn's systems, become increasingly flirtatious with each other, but stop after noticing the vapor as well.