Cape Town - Former TRL presenter Hilarie Burton claims Ben Affleck groped her during an interview in 2003.
This comes after the Argo actor said he was "saddened and angry" by claims of sexual assault made against Harvey Weinstein on Tuesday.
Affleck's statement was quickly slammed by many - including Weinstein's accuser Rose McGowan - who called Affleck a "liar."
One fan tweeted: "He also grabbed Hilarie Burton's breasts on TRL once. Everyone forgot," to which Burton responded: "I didn't forget."
Burton went on to tweet an outtake from an episode of TRL Uncensored in which she speaks about the incident. The One Tree Hill actress can be heard saying: "He comes over and tweaks my left boob."
She later thanked fans for all their support saying she was "just a kid." "Girls. I'm so impressed with you brave ones. I had to laugh back then so I wouldn't cry. Sending love," she wrote.
Affleck has since tweeted: "I acted inappropriately toward Ms. Burton and I sincerely apologize."