Ellen DeGeneres has revealed that she was sexually abused by the husband of her mother when she was just a teenager.

Ellen opened up during an episode of Netflix's 'My Next Guest Needs No Introduction With David Letterman,' and the abuse began after her mother had to have a breast removed, per ET.

"He told me when she was out of town that he'd felt a lump in her breast and needed to feel my breasts because he didn't want to upset her, but he needed to feel mine," Ellen she told Letterman. 

"Again, 'cause I didn't know about bodies, I don't know that breasts are all different and… Anyway, he convinced me that he needs to feel my breasts, and then he tries to do it again another time, and then another time."

She continued: "He tries to break my door down, and I kicked the window out and ran 'cause I knew it was going to go more to something."

"I didn't want to tell my mother 'cause I was protecting her, and I knew that would ruin her happiness," said Ellen, adding that while she maintains a good relationship with her mother, she wishes she'd stopped protecting her.

"I'm angry at myself because, you know, I didn't — I was too weak to stand up to — I was 15 or 16," Ellen said. "It's a really horrible, horrible story and the only reason I'm actually going to go into detail about it is because I want other girls to not ever let someone do that."

Her mother apologized for not believing her sooner, and eventually left him after his story changed too many times.