Ben McKenzie and Morena Boccarin
"Gotham" stars Ben McKenzie (left) and Morena Baccarin (right) made their first public appearance as a couple at Sierra Club's Act In Paris, A Night Of Comedy And Climate Action at the Heath in New York City on Nov. 11. Getty

Ben McKenzie and Morena Baccarin have been shown together as a couple as part of Fox's Batman prequel series "Gotham." The two are also together in real life, but neither one has come out and mentioned their relationship publicly. That changed this week when the couple was photographed at a red carpet event in New York City with their arms around each other.

McKenzie, 37, and Baccarin, 36, made their first public appearance as a couple and first since news of their pregnancy broke over a month ago, at Sierra Club’s Act in Paris, A Night of Comedy and Climate Action for Heath event Wednesday, according to Us Weekly. The two were captured in photos looking as happy as ever, while Baccarin's baby bump could be seen in her fitted black dress.

News broke in September that the two were not only dating, but that they were also expecting their first child together. McKenzie and Baccarin plan to get married in the near future, according to documents obtained by TMZ. In the documents, Baccarin said "Today, I am in a new committed relationship. I am planning to re-marry. Also, I am 3 1/2 months pregnant."

Baccarin's ex-husband Austin Chick filed for divorce in July citing "irreconcilable differences." The two will share joint custody of their 2-year-old child Julius, while Chick claims she started her relationship with McKenzie while they were still together.

Although the two are a couple on "Gotham" as well, things aren't going as smoothly on the Fox drama as they are in real life. In episode 8, Detective Jim Gordon (McKenzie) had to square off against his ex-fiancé Barbara (Erin Richards), who still has feelings for him. The two even shared a kiss in the episode, which Jim said was a strategy to try to get Barbara to disclose information about Theo Galavan (James Frain). Dr. Leslie "Lee" Thompkins (Baccarin) observed all of this and said the two need to have a serious talk towards the end of the episode.

It's unclear where the show plans to take the couple on "Gotham," especially with the baby on the way. It's been revealed that a baby won't be written into their on screen story, so we'll have to wait and see if they show plans on somehow covering up her baby bump, have her leave the show for a while, or write her off.

You can catch the couple on "Gotham" Mondays on Fox at 8 p.m. EST.