During the chat, Tiffany, 38, jokingly chatted up the 40-year-old, who is married to Daniella Deutscher, and put her arm around him as she asked, "How you doin'? Do you have any baby mamas?"
"I could," replied Jay, to which Tiffany giggled, "You could? So, you didn't answer my question, though..."
Jay, who is portraying Thomas Magnum in the "Magnum P.I." reboot, then tried to change the topic of conversation and spoke about how the programme was filmed in Hawaii.
"It's paradise. That being said, the first thing I got was a mattress. That's all I had in an empty apartment. The second thing I bought was a cabinet full of liquor," he shared.
"Oh, OK! Sound like you need me to visit," smiled Tiffany, before she said: "I've dated men that only had a mattress and liquor before."
To wrap up the chat, Tiffany told James that Jay was "cute", while the British TV host commented, "I sort of feel like it's an amazing couple, right?"