Couple reunite at Billboard Music Awards 2015

Jennifer Lopez and on-and-off boyfriend, Casper Smart didn't arrive at the Billboard Music Awards in Las Vegas together but that didn't stop them from sitting side by side during the event.

The couple who split last June were spotted together at the music event but did all they could to avoid their usual PDA.

The 45-year-old singer had a straight face most of the time Casper was sitting close but the dancer's hand was later seen caressing Jlo's thigh while she clapped for a performer.

Jennifer Lopez wore a very sexy gown that not only hugged her curves, but also showed off her stomach and underboob... something we are so sure smart couldn't keep his eyes and hands off so easily.