LOS ANGELES — The son of TV psychologist Dr. Phil has proposed to former Playboy playmate Erica Dahm, one of the triplet Dahm sisters.

Jay McGraw, 26, got engaged to Dahm in Dallas, Chandler Hayes, a spokesman for Dr. Phil McGraw, said Monday.

Dahm exclaimed, "Oh gosh, is this real?'' after the Aug. 26 proposal, Hayes said.

The couple will wed in Los Angeles but the date was not revealed.

Jay McGraw designed the five-carat diamond, emerald and platinum engagement ring.

He told syndicated TV show The Insider: "I asked her father for her hand in marriage first. I finally told my parents and they are ecstatic. She's the one I want to spend the rest of my life with.''

Dahm, 27, and her two sisters appeared in the December 1998 Playboy.

McGraw is a bestselling author of self-help books himself. They include Closing the Gap and The Ultimate Weight Solution for Teens.