nick jonas demi lovato x factor 'X Factor': Nick Jonas finds Jillian Jensen 'sexy' and more guest mentoring bon motsFor the judges’ homes visits on “The X Factor,” when each judge whittled their six acts down to four, each judge also welcomed a guest mentor to help out. At the house for the Young Adult group (18-24 year-olds), Demi Lovato welcomed fellow pop sensation Nick Jonas.

Some of his highlights include:

About Willie Jonas: “Sometimes he’s R&B and sometimes he’s country. I do think there’s a place for him, but he’s gotta define that.”

About Jillian Jensen: “Maybe it’s out of line, but she’s kinda sexy. There’s something sexy about her. It’s the voice tied with the passion in it.”

About Cece Frey: “She took direction extremely well.”

What did you think of the youngest Jonas brother? Did he do a good job? Or just kind of sit there?

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."