Looks like things are heating up between Mossimo Giannulli and Hannah Harrison.

The two stepped out together for a third time following the fashion designer’s split from Lori Loughlin — this time grabbing a drink at Lynx Coffee in Los Angeles over the weekend.

The pair did not engage in any PDA in the pics obtained by Page Six, but appeared to be in good spirits as they left the coffee shop together.

In the snaps, the Mossimo founder, 62, dressed casually, wearing a white T-shirt, khaki pants, brown loafers and a black baseball cap.

Meanwhile, Harrison, 32, rocked a light gray zip-up hoodie, gray sweat pants and black ballet flats.

Giannulli and the much younger stylist were first spotted together last October while waiting for a car at the valet after a shopping spree at the designer’s G/FORE Supply store in Beverly Hills, Calif.

After rumors surfaced about their relationship, Harrison denied that they were anything other than platonic.

“I feel like it was bad timing. I went to the [G/FORE Supply] store not knowing that his separation had been announced,” she told Us Weekly at the time. “I was going there to meet him.”

The stylist claimed she “was there shopping” and saw the photographers as they were exiting.

“We did not drive together. We drove separately,” Harrison told the outlet.

However, the following month, she was seen with Giannulli for a second time, enjoying a night out at Zouk nightclub in West Hollywood, Calif.

The duo appeared in good spirits as they walked side-by-side into the venue.

Photographers alleged that the businessman and Harrison later left the venue together and went to the latter’s house, where they chatted until 3 a.m.

Last October, a rep for Loughlin, 61, confirmed to Page Six that she and Giannulli separated after nearly 28 years of marriage.

“Lori and Mossimo are living apart now,” the rep confirmed to us at the time, adding, “There are no legal proceedings underway.”

Page Six exclusively reported that the “Full House” actress found “incriminating” texts and emails on her husband’s phone.

“Mossimo had used Lori for years,” a friend of Loughlin told us. “She was hoping maybe he would change when he got out of prison, but he got worse.”

The exes share daughters Olivia Jade, 26, and Isabella Rose, 27.