Jon Gosselin
Mark Arbeit/TLC
"The two women with whom I've been photographed are family friends – Lauren Glassman and Lauren's daughter, Hailey," he tells PEOPLE. "Lauren's husband, Dr. Larry Glassman, performed Kate's tummy tuck surgery, and since the surgery we've become friendly with the Glassmans."
The Glassmans were photographed shopping with Jon at the Riverside Square Mall in New Jersey over the weekend, stopping in at Louis Vuitton, Cole Haan and Godiva stores, according to TMZ.com.
The trio were first spotted over Memorial Day Weekend, visiting a bar in Newburgh, N.Y., where Jon drank Miller Lite, according to witnesses.
Meanwhile, Kate Gosselin went on a working vacation in North Carolina last week with her eight kids, body guards, a nanny and camera crews.
Jon & Kate Plus Eight returns to TLC Monday (8 p.m. ET) with the second episode of the fifth season.
