Everyone but Simon was surprised when River exclaimed that she felt the need to push.
"AGAIN?" asked Jayne, who was gently holding his newborn son. "I thought them urges was gone once the baby was out!"
When Jayne realized Simon was about to deliver another baby, he paled considerably and looked quite faint. Zoe took the squalling boy from him, just in case.
"I've been DYING to tell you," he told the panicking father, "But you were adamant about not knowing anything!"
No one noticed the 4 year-old brunette mop-top wander out of the infirmary and into the cargo bay. A few minutes later she returned carrying an EVA helmet and gloves, which she handed to her father.
"Do I gotta call you Tarth Raider now Daddy?" she asked.
Once the laughter died down the exhausted River told her husband: "You have GOT to stop letting her watch that movie!"