The couple – who split last summer after allegations he’d been flirting with a transgender model Sofie Vissa – were snapped together in Los Angeles on Thursday night.
At one point Casper, 27, even put his arm around the 45-year-old. (SCREAM).
Now, he could have just been giving her a matey hug (like you would to a friend if they were cold) but looking at the evidence…we think not.
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Bizarrely, J-Lo appeared to be crashing a meeting between Casper and Nick Jonas. The guys were at the Z Zegna & GQ event in Hollywood before Casper met up with Jen and went to the nearby Hotel Café.
Casper worked as the choreographer for Jen’s Dance Again tour in 2012 (he was back up dancer before that) and he dated the Love Don’t Cost A Thing singer for two years before they split.
Last month, mum-of-two Jen hinted she was back on the market saying: “I think being on my own has been really great for me. There was a time where I was just like ‘I'm just not going to deal with anybody, I just want to be on my own,’ – now I'm getting back into the mix.”
She did add however that she had “no announcements to make” at that time.
What about now, Jen?
jennifer lopez before the stylist
1 of 15jl0-8
2 of 15jlo-1
3 of 15jlo-2
4 of 15Out and about in 2008
In a frock that's so Essex we're surprised the TOWIE lot haven't ripped it off.
5 of 15Fringed in 2007
Heading straight for the cruise ships in this number...
6 of 15Nickelodeon Kid's Choice Awards in 2004
Accessories > when in doubt, wear them ALL.
7 of 15Paris 2003
Rags can be designer treats, too!
8 of 15Floppy in 2001
At the height of her bad ass early booty babe days in OTK boots and meow prints.
9 of 15Golden in 2001
Look at those trousers! Have you ever seen a pair that are more 00s than these gold beauts?!
10 of 15Vogue Awards 2000
Gold was a big part of early J-Lo's look. That hoop belt looks like a portal into another universe.
11 of 15Piano posing in 2000
The dress... those boots... that piano... WE DON'T KNOW WHERE TO START.
12 of 15Shiny in 2000
Why wear one lot of shiny leather when you can wear TWO?
13 of 15Red carpet styling in 1998
Jen must have raided her mum's wardrobe for this. SURELY.
14 of 15Jaunty in 1997
The Made In Chelsea lot might think they pioneered this jumper-over-the-shoulders look, but NO.
15 of 15Throwing some shade in 2007
So Joan Collins it's actually cool.