Khloe Kardashian
Television personality Khloe Kardashian arrives at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood, California March 2, 2014. REUTERS/Gus Ruelas REUTERS

Khloe Kardashian has attended French Montana's 30th birthday celebration, fueling speculations that the couple are indeed back together. All eyes are on the reality TV star, who donned a provocative outfit at the party.

Khloe went bra-less under her semi-sheer midnight blue gown, which also featured a one-shoulder strap and thigh-high slit. Mail Online thought that Khloe has revealed a little too much skin with her outfit in what appeared to be a formal affair. The birthday celebrant wore a nice white suit and red tie.

Khloe isn't the only Kardashian present at French's birthday bash. Kris and Kylie Jenner, Kim, Corey Gamble, Snoop Dogg, and Diddy were among the guests who attended French's party sponsored by CIROC Pineapple in Los Angeles. Both Khloe and French shared snaps from the party on social media.

In an Instagram post on Nov. 10, Khloe wrote a heartfelt message for the singer-rapper. "Happy birthday baby boy," Khloe began. In the message, the reality TV star said that the two of them had created timeless memories together. "I can't wait to celebrate life with you tonight, you deserve it."

Khloe and French haven't announced if they are really back on together. Khloe's attendance in French's party only means two things -- either they have reconciled or they have become the friendliest exes.

Recently, Khloe's estranged husband has also celebrated his 35th birthday. An insider revealed to Hollywood Life that Khloe called Lamar to wish him well on his birthday. It was a short conversation, the insider said. The former couple didn't really talk about other things, especially her romance with French.

Lamar, on the other hand, is happy that he has added another year in his life. The former professional basketball player is thankful that he is healthy and in good shape. Lamar's time away from the basketball court and Khloe had given him time to ponder on the things that really matter to him. Lamar has had time to think about his family and look back on the things when he was still married to Khloe, who filed for divorce from him in December.