Ariana Grande and Big Sean are rumored to get engaged during Christmas-a source told Life & Style.

The couple is said to be "already thinking about engagement" and is the "happiest" she's ever been.

Ariana Grande and Big Sean made a raunchy performance at KIIS FM's Jungle Ball concert in Los Angeles, where her boyfriend grabbed her rear and tried to kiss her.

Could the singer, whose fan base is mainly composed of minors, face controversy for her on-stage antics? 

Ariana Grande and Big Sean are rumored to be heading toward engagement: a source close to the couple revealed they are "soul partners."

"It has gotten very serious very quickly," a source said, according to the Hollywood Gossip.

"Ariana feels that he is her soul partner."

She posted a picture of herself making out with Big Sean on Instagram during her American Music Awards 2014 appearance, leading many to believe the couple is dating more publicly and seriously.

She revealed during a recent interview that she has internally dealt with insecurities surrounding her career.

"It's tough to spend some of the most important years of your life in front of so many strangers who want to pick you apart," she said during an interview with Seventeen.

"Insecurity has been the hardest thing I've had to overcome. I think everyone my age struggles with that because everyone strives for approval and wants to feel loved."

Instagram and Twitter rumors suggested the same problems may be present in her relationship with rapper Big Sean. These rumors, however, have not been substantiated.

Ariana Grande allegedly regrets public revealing the fact that she is dating boyfriend Big Sean.

"I have conflicting feelings about it," she admitted during an interview with In Style magazine.

"On the one hand, I feel like I'm growing up and realize my life is my life and some things don't need to be shared. But I'm very spur-of-the-moment, very open with my fans. And if there's a cute pic I like that's a little personal and I want to share it, maybe I will."