In the video, the Legally Blonde star is sitting alone in the backseat of a police car (whose sole job was to transport the Hollywood A-lister to the station.)
Witherspoon appears calm, inquisitive and friendly to the cop and continues to discuss her pregnancy—which we now know from the actress was entirely made up.
The officer says, "You're pregnant, I'll take better care of you."
To which Witherspoon replies, "That's right."
The star also refers to herself later on as a "pregnant girl." Witherspoon has two major issues while being driven into the station: that she has to use the bathroom and what exactly her charge of "disorderly conduct" means.
The cop asks, "If you don't mind me asking, how far along are you?"
"Very early," she says. "I'm sure you have a wife, it just comes on and you have to go to the restroom."
About midway through their chummy ride Witherspoon asks, "What exactly am I being charged with again?"
The cop then explains what "disorderly conduct" means and asks midway, "Is your hair color really red [naturally]?" She laughs and politely says, "No, sir."
Finally, after repeated mentions of having to use the bathroom, the apologetic officer finally tells her, "If you do pee on my seat I won't hold it against you."
Fortunately, the mother of three makes it to the police station calmly and without any accidents.
—Additional reporting by Emily L. Foley