Watch: Controversial 'Big Brother' Houseguest Comes Under Fire Again for Asking Player if She's Trans

"Big Brother 20" player JC Mounduix is making headlines yet again.

The openly gay houseguest is facing a Twitter backlash this week after asking fellow contestant Rachel Swindler if she's transgender, Us Weekly reports. The moment was spotted by the CBS reality show's fans who were watching the 24/7 live feeds.

"Are you a real girl?" Mounduix, 28, asked Swindler, 29, who was wearing a bandana over her eyes, trying to sleep. A frustrated Swindler throws her hands up in the air and says, "Yes."

"There was a comment that you are a trans," Mounduix, a dancer who resides in West Hollywood, said. Swindler, a Las Vegas entertainer, then wanted to know "who said that."

"I did," Mounduix responded. Swindler then turns her head away from Mounduix and says, "Ok. No, not a chance."

He then pokes Swindler's neck and tells her, "You have a big Adam's apple."

After moving his hand away, Swindler says, "JC, please go to bed and stop talking to me. That's, like, kind of rude."

Mounduix laughs to himself and then touches her neck again.

"I'm serious. Stop it!" she said.

The moment caught the ire of many "Big Brother" fans who took to Twitter to call out Mounduix.

This isn't the first time Mounduix has made headlines for upsetting fans on social media. In early July, it was reported he came under fire after attempting to place an ice cream scooper on fellow houseguests' private parts. Some "Big Brother" fans said his actions amounted to sexual assault.

After that, in mid-July, Mounduix used a racial slur when speaking to contestant Bayleigh Dayton, who is black. The moment, which fans first noticed on the live feeds, was later broadcast on the proper "Big Brother" show with a warning. In the conversation, Dayton asks if there's "a difference between a midget and a dwarf." Mounduix, who stands at 4-foot-8-inches tall, tried to explain the word "midget" is a pejorative term, linking the word to other slurs. He said it's similar to saying "gay," and "faggot" or like the n-word and "black." That's when Dayton got visibly upset and told him he's not allowed to say that word. "Big Brother" fans on Twitter also called out Mounduix and asked for producers to step in.

Watch Mounduix speaking with Swindler below.