Their date went off the rails.
An MTA motorman allegedly let his gal pal operate a D train through multiple stations during a tunnel-of-love trip in Brooklyn on Friday — and the next stop could be jail.
Cops are looking to question the wannabe-conductor Dominique Belgrave, 28, after she posted an Instagram story showing her and her beau — identified by police as Terrell Harris — holding hands over the train’s controls on their romantic jaunt through the 50th Street, 55th Street and 62nd Street stations.
“Yes, this is me operating the train right now,” Belgrave says in one of multiple videos posted to her account, which has since been made private.
At one point, as the love train choo-choos through underground stations, Belgrave is shown in footage alone at the controls and posing for a selfie with Harris in the cab.
As the train zips toward Coney Island-Stillwell Avenue, Harris explains that the marker showing where operators must stop is hard to see from the cab, and Belgrave echoes the complaint.
“Y’all ain’t put the stickers in a visible place!” she exclaims.
A third clip shows her entering the public section of the car saying “Back inside I go.”
Belgrave’s caption reads: “Conducting The D u hurdddd.”
Footage of the transit-loving temptress driving the motorman wild went viral among MTA workers over the weekend, and eventually caught the eye of a supervisor — who reported them to the NYPD, police said.
But the rule-breaking ride may be the third rail of career moves.
Interim Transit President Craig Cipriano said Harris will be disciplined. The 32-year-old, 11th-year MTA employee earned $117,486 in 2020, according to SeeThroughNY.
“This video is beyond egregious showing a train operator who betrayed the trust of New Yorkers while creating a dangerous condition,” Cipriano said in a statement.
“I want to assure customers that the operator involved has been removed from service and will no longer be allowed to control a train.”
Despite the post-tryst train wreck, Belgrave bragged about the illegal breach of the operator’s cab on Facebook — and suggested she might be angling for a Transit Authority gig herself.
“All you MTA f–kers tryna add me on my Facebook and IG eat a big fat Turtle neck cheesy D–k how bout that,” she wrote.
Other MTA workers reported the incident to the NYPD.
“I’ll might start at the bottom but ima move my way up they gon see me in traffic.”
She did not immediately return a request for comment.
It’s not clear whether Harris or Belgrave will face criminal charges.
Additional reporting by Natalie O’Neill and Steven Vago