Megan Fox, on a date with her fiance, Machine Gun Kelly, shows how to combine trendy jeans and a crop top

The couple chose Nobu restaurant in Malibu for a romantic dinner.

Megan Fox will always find an excuse to show off her flawless abs, even on the way to the restaurant where the couple dines every week.

Reporters caught the couple entering the popular Nobu yesterday. The 36-year-old actress went to dinner with her fiancé in high-rise jeans with slits at the bottom, a tight brown jersey crop top with a very deep neckline, and white Bottega Veneta sandals.

The outfit of the…