Justin Sterling

Jay Grdina
Jay Grdina at the XBiz Awards, November 17, 2005
Born	John G. "Jay" Grdina (1967-10-11) October 11, 1967 (age 49) Ohio

John G. "Jay" Grdina (born October 11, 1967) is an American businessman and pornographic actor. His family originates from Croatia. He is often credited under the stage name Justin Sterling.

Grdina was born in Ohio to a wealthy cattle ranching family who immigrated from Karlovac, Croatia. He spent portions of his grade school years at Naples Christian Academy (NCH) in Naples, Florida and his high school years at Gilmour Academy, a prep school in Gates Mills, Ohio. He attended the University of San Diego majoring in business and psychology.

After graduating college, Grdina pursued a variety of careers and business ventures until 1992, when he began investing in adult films directed by Michael Ninn. From 1995 to 1999, he wrote and directed several pornographic films in Ninn's style, often under the name 'Michael Santangelo, Justin Fine and Justin Sterling.

Grdina met Jenna Jameson, already a famous porn star, in 1998. They married in a Roman Catholic-style ceremony on June 22, 2003. The couple resided in Scottsdale, Arizona in a 6,700-square-foot (620 m²) Spanish-style mansion purchased for $2 million in 2002. They later moved to Paradise Valley in a 10,000 sq ft (930 m²) home for $4.5 million.

In 2000, Grdina co-founded ClubJenna, first as an Internet pornography company then as a multimedia adult entertainment business. On June 22, 2006, Playboy Enterprises announced the acquisition of Club Jenna and related companies in conjunction with personal service agreements by both Jameson and Grdina.

Grdina produced, directed, and wrote several Club Jenna films including Briana Loves Jenna, The Masseuse, I Dream of Jenna, and Krystal Method. Grdina also acted in some of these films, as the only man that Jameson would have intercourse with on screen.