Naya Rivera In Monique Lhuillier - '42' LA Premiere

‘Glee’ girl Naya Rivera was certainly all grown up, as she struck a pose at the Los Angeles premiere of ’42′ at the TCL Chinese Theatre on Tuesday.

The actress wore a form-fitting Monique Lhuillier frock in a grey micro-print from the designer’s Fall 2012 collection.

This look was certainly giving me a sexy secretary vibe; it was business on the bottom and party on the top with that curve-flaunting cutout detail.

Naya’s voluminous locks added to the va-va-voom effect. So did her smouldering makeup, which included a smokey eye, dramatically winged out at the outer corners, and a nude lip.

She accessorized with a pair of blinding white Christian Louboutin pumps and Tahitian pearl rings.

But her most talked-about accessory may have been her new boyfriend, Big Sean, who accompanied her to the premiere, so perhaps that explains her sexy look.

Credit: Getty