Dustin Zito continues to be haunted by his gay porn past on MTV's The Real World: Las Vegas.

Zito previously appeared as “Spencer” on gay porn sites FratMen.com and FratPad.com.

Now 24, he's living his life in front of the cameras of the reality show's 25th season.

On the season's eighth episode, Zito acknowledged his gay porn past to his girlfriend, Heather Marter.

“You got taped having sex,” Marter says. “It's all over the Internet.”

“Wait, what? I didn't get taped having sex. Yeah, OK, I got naked and stuff. There wasn't no touching involved.”

“So, you never did anything where you touched anyone else?” she asks.

“On a video, yes, I did,” Zito replies.

The admission, however, comes too late for Marter, who breaks it off with Zito.

On Wednesday's episode, Zito's past returned when Michael Ross tells him that he might not be able to participate in a music-based charity because minors will be involved.

“Don't take this the wrong way,” Ross tells Zito as they walk through a casino. “I don't know if you'll be allowed in the school.”

“Because if they Google your name now, porn comes up,” Ross adds.

Zito tells Ross that he's being “rude” and “attacking” him.

“I don't get why you're mad at me,” Ross says in the confessional. “You did porn. You did it. And now these are the ramifications. These are the things you're going to have to deal with the rest of your life.”

Back at the house, Zito blows up at his roommate, tackling him out of a chair.

What he said “hurt,” Zito says after the altercation.