EXCLUSIVE: 'People v. OJ Simpson' Star Sarah Paulson Talks Marcia Clark-Chris Darden Romance Rumors: 'I Have M

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Did they, or didn't they?

The People v. O.J. Simpson: American Crime Story
stars Sarah Paulson and Sterling K. Brown have gotten rave reviews for their portrayals of prosecutors Marcia Clark and Christopher Darden, and ET chatted with the pair on Wednesday night at a screening for the show's season finale to get their insider take on persistent rumors that Clark and Darden were involved romantically.

"I have my theories and my thoughts about what was happening there," Paulson, who actually met with Clark before playing her in the hit FX series, tells ET exclusively.

WATCH: EXCLUSIVE -- Christopher Darden Opens Up About Marcia Clark

Brown muses that the two lawyers may have an "agreement" when it comes to never divulging the nature of their relationship.

"They have been coy for over 20 years," Brown points out. "He talks about it in his book, In Contempt. …. I read the book. When it comes to actually, 'Did they do the do?', he leaves that unsaid. So, you know, I think it is just the agreement that they came up with between the two of them."

But the intense series certainly hints that there's more than friendship between the two, particularly, in one memorable scene when Clark and Darden take a trip to Oakland, California, together to celebrate the birthday of one of Darden's friends. Still, Paulson points out that the show stops short of giving plenty of viewers what they want in order to stay factually true to the story.

"We never had any confirmation from either one of them, so ... if we didn't have any direct concrete proof, we were not going to actually give it to the audience as if it were fact," Paulson explains. "I think a lot of viewers are imbuing what they hope to be true, and I think Sterling and I have, apparently, a bit of chemistry, which is good."

When ET caught up with Clark last September, the 61-year-old crime writer stressed that she and Darden had a close bond.

"Chris and I were trench mates," Clark said. "He kept me from just utter depression so many days."

"Sometimes it would really get to me," she added about dealing with the courtroom stress. "And he would be there to say, 'It's alright, it's going to be OK. If we just keep putting on the evidence, they'll get it. They'll get it.' He was a great partner, and I hope they show that."

ET also sat down exclusively with 59-year-old Darden on Monday, who similarly played coy on the romance rumors. Darden said that he "never really dated anyone" and didn't "recall" ever kissing Clark. He did, however, have plenty of concern for her and their other colleagues.

"I felt like her protector, and I felt like the protector of all of my staff and the whole prosecution team," Darden said. "In a way, they were my responsibility... That was my crew."

He also dismissed Ellen DeGeneres' claim that Darden was "in love" with Clark, when Clark appeared on DeGeneres' show earlier this month.

"I know Ellen DeGeneres said she could tell that I was in love with her," Darden told ET. "I saw that and I was like, 'Does Ellen understand that Sterling is acting like he is in love with her and not me?'"

WATCH: EXCLUSIVE -- Marcia Clark Addresses Those 'American Crime Story' Christopher Darden Romance Rumors!

Still, Darden had nothing but positive things to say about Clark, whom he still considers a friend.

"There's nothing not to like about her," he gushed to ET. "She's a strong woman, intelligent woman, and what's better than that?"

Watch below: