Karissa and Kristina Shannon, the sexy twins currently dating Playboy founder Hugh Hefner, have booked a role in Sofia Coppola's forthcoming drama Somewhere.

"We can't say much," the pair told RadarOnline.com at Comic-Con, "we do have costumes though."

That rules nudity for their first film foray!

• TAGS

• Benecio Del Toro
• Comic-Con
• Elle Fanning
• Girls Next Door
• Hugh Hefner
• Shannon Twins
• Sofia Coppola
• Somewhere
• Stephen Dorff