Scott Baio was taken back when asked about being alone with co-star Nicole Eggert when she was a minor.
Baio, 57, appeared on "Good Morning America" Wednesday in an attempt to deny accusations made by the actress that he molested her weekly beginning when she was 14 — and later allegedly had intercourse with her when she was 17.
Eggert, 46, tweeted on Saturday, "Ask @scottbaio what happened in his garage at his house when I was a minor. Creep."
When "GMA" host Amy Robach pressed Baio about the alleged encounter, he was dumbfounded. Baio stuttered, nervously laughed and threw his hands up in the air.
"I have no idea what that means," he said. "I have no idea. So you can't just keep making up different things."
The "Charles in Charge" star told Robach that he never saw Eggert off the set.
He also claimed any possible molestation was "impossible" because there were always teachers, parents, cast and crew on set at all times. As for being alone with Eggert, he said, "no, unless I was in a scene alone with her and directors and producers and crew guys are watching. Never.
"Never. It's impossible."
Eggert appeared on "Megyn Kelly Today" Tuesday where she said she lied over the years about her relationship with Baio and that they in fact had sex at her home when she was 17, while the show was still on air, despite saying in past interviews it was after the show had ended.
Baio used her previous statements and interviews as an attempt to prove his innocence, noting he "couldn't keep up" with her stories anymore.
Robach questioned Baio as to why two people who worked on the show would corroborate Eggert's story that she told them about the alleged molestation.
Baio again didn't know how to react.
He sighed and told Robach, "I don't know what they're saying. I have no idea. I don't know why they're saying it. I don't — there were so many people on that set. Nobody said anything until — and by the way, Nicole and I were friends after our only sexual encounter where she, she aggressively sought me out because she wanted me to be her first so that she would be good for her boyfriend, those are her words."
In an interview with Nik Richie for The Dirty, Eggert did admit wanting to lose her virginity to Baio, but now claims that was the final moment she realized she didn't have to keep lying about what had happened.
Richie, who shares the same manager as Eggert, said in a statement that the actress was distraught after the interview.
"Off air she was an emotional wreck," he said. "She told me it was much worse than she described on air. She said 'he molested me as a child and I didn't know any better.' I can vividly remember that statement. It's not one you would forget."
In a Facebook Live video posted after Eggert made her accusations, Baio instructed her to go to the police if she has a real crime to report.
Eggert said she might do just that — which prompted Robach to ask if Baio has any concerns.
"Why would I have a concern over something that I didn't do?" he said.