Casper Smart and Jennifer Lopez on her music video set March 12
Is Jennifer Lopez
ready to walk down the aisle
with Casper Smart?
Speculation ricocheted around the web that the pop star, 42, and her beau
, 24, might be ready to tie the knot when fashion designer Roberto Cavalli seemed to send out an intriguing Tweet to his followers
"Today , Jenifer Lopez. Call me...... She ask me. To create a special dress. For her next weding. !" he appeared to Tweet. "Wich color ... Do you advise me. ?"
But any imminent plans for the couple to wed are not true. Cavalli's rep tells PEOPLE that the designer's account had been hacked and "therefore it's completely false," and a close Lopez source says, "They are not getting married. They are not even engaged." Lopez's rep also denies she's getting married.
But that doesn't mean Lopez and Smart aren't still going strong. In fact, the couple seem to be getting along better than ever. Just this week, the pair spent time in Acapulco, Mexico, where Lopez filmed a music video. And Smart has been spotted supporting Lopez during live tapings of American Idol
"Jennifer thinks she is very lucky to have met Casper," says the close source. "He is everything that Marc wasn't: kind, supportive, appreciative...There is a lot of love between [them]. He treats her like a queen."
Smart has been bonding with Lopez' twins Max and Emme, 4, as well. "He is great with Max and Emme and genuinely cares about them," says the source.
Meanwhile, Lopez and Marc Anthony, 43, who split in July of last year, have still not finalized their divorce, although a source close to Anthony tells PEOPLE that they filed "months ago."
Reporting by PERNILLA CEDENHEIM, ANNE MARIE CRUZ and LIZ MCNEIL