ByJonathan Patrick, writer at Creators.co
The Geek Desk
Jonathan Patrick

From Batman and Catwoman to Batgirl and Robin, Batman: The Animated Series has always been faithful when it comes to interpreting the Dark Knight's most famous pairings. The show even added to the love by creating the Joker's No. 1 partner, Harley Quinn. Of course, the series has also taken a some creative liberties, a few of which we never saw coming.

Fans were recently stunned by Harley Quinn and Nightwing's one-night stand in the series' newest film, Batman and Harley Quinn. However unforeseen the hookup was, Harley and Dick aren't the only two unlikely characters to have shared a jaw-dropping romantic encounter. Here are five romances from the Batman: The Animated Series universe that shocked us.

1. Batman And Batgirl

'Batman Beyond' [Credit: Warner Bros. TV]
'Batman Beyond' [Credit: Warner Bros. TV]

and Batgirl shared one of the most controversial relationships in the series. Traces of their romance go as far back as Barbara dreaming of Batman kissing her in "Batgirl Returns." Of course, she ended up dating Dick Grayson, but that fell apart amidst the revelations in "Old Wounds." After learning each others' identities, Batman and Batgirl began working closely together. With Dick out of the picture — and despite an age difference that made many fans wince — Bruce and Barbara became and item.

Oddly, we never actually see the happy couple together during their relationship. It is as if the writer's knew it was a bit taboo. Their romance only comes up briefly during Batman Beyond and Batman: Mystery of the Batwoman. After the Joker abducted and tortured Tim Drake, Bruce broke off ties with his team. Barbara was the last member to relinquish their role. She eventually became Gotham's Police Commissioner and the two managed to work together in Batman Beyond, but things were never the same between them.

2. Harley Quinn And Nightwing

'Batman: The Animated Series' [Credit: Warner Bros. TV]
'Batman: The Animated Series' [Credit: Warner Bros. TV]

As with Batman and Batgirl, this unexpected pairing has gained strong opinions from fans on both sides. Their brief romance began when Nightwing followed Harley to her apartment to get information on Poison Ivy. After she discovered him, the two traded blows, with Harley gaining the upper hand by injecting Nightwing with Joker Venom. When he woke, he was tied to her bed. As Harley undressed in front of him, Nightwing tried to ignore her. After slipping into her signature costume, she was upon him.

What happened when Harley turned off the lights and joined Nightwing in her bed is anyone's guess. When Batman tracked his partner down, he heard sounds of a scuffle that quickly turned to laughter. He opened the door to find Nightwing and Harley in a tickle fight. Taking in the torn tape around the bedposts and Harley's scattered outfits on the floor, Batman let his conclusions go unvoiced. When the three go to the Batmobile, Harley declines Nightwing’s assistance into the car saying, "You give 'em 20 minutes of naughty fun time and they think they own ya!"

3. Baby Doll And Killer Croc

'The New Batman Adventures' [Credit: Warner Bros. TV]
'The New Batman Adventures' [Credit: Warner Bros. TV]

The criminally insane need love too, and Baby Doll and Killer Croc are no exception. In the aptly named episode, "Love Is a Croc," Doll set her sights on the criminal with a crocodilian appearance. While catching Croc's latest court appearance on the news, Doll found herself empathizing with him. She came to believe they are kindred spirits; two misunderstood people shunned by society. So, she does what any smitten woman would do: frees him from incarceration. The two then go on a theft spree, earning the title of Gotham's Bonnie and Clyde.

It seems there truly is no honor among thieves. Croc planned take the loot and run, leaving Gotham and Doll behind. After learning her boo was about to bounce, Baby Doll offered up one last heist at Mid-River Island. Her plan: To sabotage the island's nuclear power plant and level Gotham, killing Croc and herself in the process. The plan was thwarted by Batman and Batgirl, who then stopped Croc before he could kill Doll after learning her plan. Ain't love a bitch?

4. Bruce Wayne And Lois Lane

'Superman: The Animated Series' [Credit: Warner Bros. TV]
'Superman: The Animated Series' [Credit: Warner Bros. TV]

There was a time when Batman, not Superman, swept Lois off her feet. In the episode "World's Finest," Bruce Wayne arrives in Metropolis under the guise of forming a business partnership with Lex Luthor, while Batman tracks the Joker. The visiting playboy-vigilante shared instant sparks with Lois, stepping on Clark Kent's toes both in and out of costume. Even the Joker pointed out to Bruce that he was "moving in on Superman's main squeeze." The two moved fast, with Lois soon planning to move to Gotham. But, when Lois discovered that Bruce is Batman, things change as abruptly as they started.

After learning Batman's identity, Lois realized there was a side to her new beau she didn't know about, and she admittedly wasn't sure she wanted to. She then dumped him. However brief the tryst was, the two had a lasting impact on each other. Lois admitted to Bruce in the episode "The Demon Reborn" that she had second thoughts about the breakup. In the Batman Beyond episode "Out of the Past," Bruce can be seen looking at a picture of her that he kept on his computer.

5. Nightwing And Catwoman

'The New Batman Adventures' [Credit: Warner Bros. TV]
'The New Batman Adventures' [Credit: Warner Bros. TV]

When Dick Grayson returned to Gotham as Nightwing, he had became more like his mentor than he could have imagined. In "You Scratch My Back," Nightwing forms an alliance with Catwoman to expose a South American gun smuggling operation. While it is clear Catwoman is stringing Dick along for her own gain, Nightwing is unnervingly smitten by the thieving kitten. This caught Batgirl's attention, who then expressed her concern to Dick. Blinded by his feelings, he defended Selina, stating that she has turned over a new leaf.

The Bat-Family drama continued when Batman appeared in Selina's apartment, warning her to stay away from Nightwing. Whether this was out of jealousy or to protect his former ward is anyone's guess. Catwoman insisted that the grown Boy Wonder could make his own choices. Nightwing was less than thrilled to learn about Batman's meddling. To make matters worse, Catwoman soon revealed that she was, in fact, just using him to steal an emerald she hid in the smuggled cargo. An ego-wounded Nightwing fought it out with the famed cat burglar, where he managed to come out on top.

What is your favorite Batman: The Animated Series romance?

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