AceShowbiz - Things are seemingly heating up between Priyanka Chopra and Nick Jonas. After being spotted hanging out at a baseball game on Memorial Day weekend, their relationship allegedly has gotten pretty physical as well.

"Nick and Priyanka met through mutual friends and their attraction was immediately undeniable," a source tells HollywoodLife.com, adding that "things are not too serious right now, but they are having amazing sex, but that's all it is for now, no strings or commitments."

The rumored lovebirds first sparked romance rumors after they were caught holding hand at a Los Angeles Dodgers baseball game on Saturday night, May 26. Prior to that, they were spotted attending "Beauty and the Beast Live" concert at the Hollywood Bowl on Friday, May 25.

"Priyanka and Nick were talking really closely and were very smiley and very happy," an onlooker said of their baseball game date to Us Weekly. "They weren't trying to be private as they were in a pretty public place, but they were talking to people around them, sitting closely and they both just seemed super happy."

The source added that the "Baywatch" actress and the "Find You" singer "are dating and it's brand new. It's a good match and they are both interested in each other."

Should they really date, not everyone approves of their new relationship. Priyanka's friends are reportedly against it, fearing he'll break her heart. "Her friends are all warning her that he is a total player, and not to get too close cause he will break her heart," a source tells HollywoodLife.com. "So she is keeping everything light and easy and trying not to get too attached to him, but she thinks he is really sexy, talented and their chemistry in the bedroom is undeniable."