Valerie Bertinelli to Kirstie Alley: Come work out with me!

Valerie Bertinelli Kirstie Alley

, who's in the news this week for publicly acknowledging that she's gained back all the pounds she lost on the weight-loss program.

Alley said that it blew her mind when she saw Bertinelli in a bikini on the cover of People magazine recently. "She didn't just look good - she looked stunning! It was inspiring."

Alley, who helped bring Bertinelli into the Jenny Craig family, said "it’s like the student surpassed the teacher, who is now over there in the corner, fat!”

But Bertinelli tells People that Alley's weight gain "is just a bump in the road. Nothing in life goes smoothly all the time," Bertinelli says. She still considers her fellow actor "a mentor and a motivator. She's part of the reason I've come this far."

The weight battle is a lifelong process, Bertinelli said. "I'm still on the journey and still keeping my fingers crossed," she says. "I am one jalapeño pepper away from gaining 40 pounds. It's not simple! It's something you work on every day."

Bertinelli extended an invitation for Alley to "come work out with me!"