Gretchen Rossi has been rumored to be returning to The Real Housewives of Orange County since she left the Bravo reality series years ago, but could her return to the network soon come in the form of a cameo on another one of the network's shows?

Although nothing has been confirmed quite yet, Rossi and her fiance, Slade Smiley, were recently spotted attending the birthday celebration of Shahs of Sunset star Golnesa "GG" Gharachedaghi.

"Happy Birthday [Golnesa]... so much fun at your Roller skating 80's themed party last night! Love you girl #fauxbangs #crimpedhair #Iknowyourjealous lol," Rossi wrote on Instagram over the weekend, along with the photo of herself, Smiley and Gharachedaghi seen below.

In addition to a possible cameo on the upcoming season of Shahs of Sunset, Rossi continues to be linked to a possible Real Housewives of Orange County return. While the designer has not appeared in a full-time role on the series in quite some time, she's gotten quite close to a number of the series' current stars and seems to be a sensible cast addition for the series' potentially upcoming 12th season.

In fact, just last week the former reality star was seen celebrating Smiley's birthday with Vicki Gunvalson and Kelly Dodd, both of who starred on the series' 11th season in full-time roles.

Also at Smiley's birthday? Former full-time housewives Peggy Tanous and Lizzy Rovsek.

Tags: Gretchen Rossi Golnesa Gharachedaghi Bravo Reality TV Slade Smiley The Real Housewives of Orange County shahs of sunset