Jon Gosselin Planning to Sue for Custody of Children, Says Girls 'Live in Fear of Kate'

Jon Gosselin is considering suing his ex-wife Kate for primary custody of their 9-year-old sextuplets.

Jon told In Touch magazine that he wants custody of the kids; Aaden, Alexis, Collin, Hannah, Joel and Leah, in order to give them a chance at a normal childhood.

"They live in fear of Kate. Every time I see them, they tell me they want to live with me," he told the magazine.

"First, I'm going to file for an emergency petition for contempt ... The next step is to fight for custody," Jon added. "It's the only way I can protect the younger six."

Jon claims that Kate violated the current custody agreement by not giving him the option of watching the younger six kids when she recently took 13-year-old sisters Mady and Cara to New York to appear on the "Today" show.

After the much talked about awkward interview on the "Today" show, Jon Gosselin claimed that he had no idea they would be on TV.

"I felt so bad for Mady and Cara after watching them on the 'Today' show," Gosselin told In Touch Weekly. "There was no empathy, no sympathy or comfort coming from their mother. It was a moral dilemma for the girls – they were looking at their mother before they spoke, making sure of what they should say."

The 13-year-old twins appeared alongside their mother, Kate, while being interviewed by Sasvannah Guthrie. They remained quiet throughout the interview, causing Kate to finally say, "Spit it out!" to the girls. Even though Guthrie asked the girls specific questions, they still refused to speak, making it apparently awkward for their mother, who tried to get them to say something.

Their father insists that the interview was just a reflection of the life the girls have with their controlling mother.

"You can't breathe the wrong way without upsetting her. The kids have to ask before they get a drink, before they get a snack, before they open the fridge, before they go to the bathroom. It's ridiculous. They want to please her and are scared to upset her. Meanwhile, Kate is telling them to 'speak' and they clearly don't want to," Jon said.