Selena Gomez and Justin Bieber seem to have reunited. The rumour suggests that the couple was recently seen in a hot make out session at Alfredo Flores at Party Bootsy Bellows in LA on June 16. The on and off couple was spotted kissing and getting cozy in the corner at a party.

"The entire night, Justin and Selena were all over each other and he was displaying her almost like a trophy - he wanted everyone to know they were together," a source revealed to Hollywoodlife about Selena Gomez and Justin Bieber's reunion.

It is further understood that Gomez and Bieber shared a high level of intimacy and the former was following the "Baby" singer everywhere.

"They were almost always kissing in the corner at one of the tables they were at. She was a little puppy dog all night, following him everywhere and being all over him. They were definitely were make out machines," the source further suggested to the Web site.

This is not the first time that Gomez has reunited with former beau Justin Bieber. The couple also sparked reunion rumors in March when they were spotted at a coffee date in Texas, reported Mirror.

However, they allegedly broke-up that time for unknown reasons.

Meanwhile, Gomez has been diagnosed by Lupus, as per the reports. The singer's disease has reportedly made her grandparents perturbed.

"Selena is very stressed and concerned about her condition. I am, too," Selena's grandmother Mary Gomez told Female First, adding, "She is too busy. She needs to rest. We all want her to get this under control."

Furthermore, Lupus is a life long disease and had no cure, which seemingly means that Gomez has to stay on pills for life.

"She was so distraught and really freaked out when doctors told her there was no cure and she would have to live with it for the rest of her life. She's been on meds ever since," a source further said about her disease to the Web site.

Fans hope that now that Bieber has reportedly united with Gomez, he proves a big support for the "Come And Get It Singer".