If Jennifer Lopez isn't dating Casper Smart - as she says - then something else must be going on because the ex-lovers have been spotted spending a lot of time with each other once again.

Jennifer Lopez News 2015: Celebrity Mother Opens Up About Motherhood And Her Twins, Max And Emme

According to the Daily Mail on Saturday (who also have photos of the ex-couple), the ex-love birds were spotted taking Lopez's two children, Emme and Max, out for some jet ski fun in Calabasas, California on Saturday afternoon. Smart apparently used his pick-up truck to haul the jet ski equipment to Lopez's nearby residence.

Meanwhile, there was even a report that past week that suggested the former lovers might have "faked" their relationship for the sake of their careers.

Jennifer Lopez News 2015: Casper Smart Insists He And The Actress Are Just 'Good Friends'

According to TMZ, Lopez and Smart broke up to help benefit their careers. Producers supposedly thought it would be a good idea if Lopez promoted her latest film The Boy Next Door as a single woman while Smart was "more appealing single" for his big screen film Street.

TMZ reported, "Jennifer Lopez and Casper Smart did NOT get back together, because we found out they were never really apart. Sources close to the couple tell us ... the break-up they announced in June was a business move. Multiple sources say in the spring they did stop seeing each other, but only for a few weeks."

Tags: Jennifer Lopez Casper Smart