Author Christina Baker Kline has come forward saying she was groped by former President George H.W. Bush in 2014 during a Barbara Bush Foundation for Family Literacy fundraiser during a photo opportunity.

"'You wanna know my favorite book?' he whispered. I had to lean close to hear him," Kline wrote in an op-ed for Slate.

"President Bush put his arm around me, low on my back. His comic timing was impeccable. 'David Cop-a-feel,' he said, and squeezed my butt, hard, just as the photographer snapped the photo. Instinctively, I swiped his hand away," Kline wrote.

Kline is the third woman to accuse Bush of sexually assaulting her.

Actress Heather Lind initially came forward Tuesday claiming Bush sexually assaulted her and described the interaction four years ago in a now-deleted Instagram post. The incident happened during a photo opportunity to promote a TV show.

Late Wednesday, a second woman, New York actress Jordana Grolnick, also accused Bush of groping her, according to Deadspin.

The latest statement from the office of Bush was released Wednesday and offered a detailed defense of the 93-year-old after Lind claimed that he sexually assaulted her.

The statement said that Bush has been in a wheelchair for five years and explains that he cannot reach people around the waist.

"His arm falls on the lower waist of people with whom he takes pictures," the statement read. "To try to put people at ease, the president routinely tells the same joke — and on occasion, he has patted women's rears in what he intended to be a good-natured manner. Some have seen it as innocent; others clearly view it as inappropriate."

"To anyone he has offended, President Bush apologizes most sincerely," the statement added.