Smart, 25, said he is not ready to have a family with the 42-year-old singer but wants to be a parent one day, reported Contactmusic.
"I for sure want kids in the future. In the future... When I'm ready and when the time is right," he said.
Casper said he and Lopez met through his work and their romantic relationship happened spontaneously.
"It just really spontaneously happened I guess. The chemistry was there. You can't fight it. She's just a beautiful woman. She's just a good person. Like anybody else, we cry the same, we bleed the same, sweat the same. We're all just people. We're not married, we're not engaged. We're just enjoying our life right now."
