Demi Moore, 51, and Sean Friday, 27, were spotted getting cozy inside the grand opening bash of the De Re Gallery in Hollywood on Thursday, May 15. Credit: Stefanie Keenan/Getty Images for De Re Gallery

Fancy! Demi Moore and boyfriend Sean Friday were spotted getting cozy at the De Re Gallery opening in Hollywood, Thursday, May 15. An eyewitness told Us Weekly that the actress and drummer did not walk the red carpet together, but met up later inside the venue.

In fact, Moore, 51, arrived at the gallery with another man! The actress accompanied artist Brian Bowen Smith on the red carpet. "This guy, he's one of our artists," she said, fawning overtime and affectionately resting her head on his shoulder. Smith's photography of Moore was featured Thursday evening at the gallery's fete.

Moore, wearing a white jumpsuit and wedges, and carrying a printed clutch, "looked great," according to the observer. She was "toned and tan," the insider added.

Inside the gallery, Friday and Moore mingled with stars like singer Michelle Branch. The observer added that later in the evening, the rocker walked over to Moore and rubbed her back. "She nuzzled up next to him," the insider noted, adding that Moore was "whispering in his ear and they were laughing together." At one point, Friday leaned over and started to play with Moore's hair.

Eventually, the couple left separately. "He walked by her to signal he was ready to leave," the observer told Us, "and brushed his hand across her lower back." The insider said the two split and eventually ended up at a restaurant across the street.

Ashton Kutcher and Bruce Willis' ex-wife has kept her most-recent relationship under wraps since they were first photographed together back in December. The couple went on vacation in Tulum, Mexico, with Moore's oldest daughter Rumer Willis, 25.