The 25-year-old model and the baseball player stepped out for a date night at Catch on Tuesday (August 1) in New York City.
Kate wore a form-fitting black dress with one lace-up sleeve, along with black heels.
She had just wrapped up her appearance on Watch What Happens Live.
That same day, Kate changed into a flowy floral dress while stopping by Good Day New York with her pup.
“We are planning the wedding, it’s very stressful,” Kate told the hosts, adding with a smile, “No fights so far.”
Kate also shared that Harley “fell in love with Justin … He prefers playing catch with Justin over me.”
FYI: Kate is wearing Giuseppe Zanotti shoes.