Jessica Simpson Boozy Night of Clubbing ... With a Fast Food Chaser

6/9/2014 3:20 PM PDT

Jessica Simpson was looking hot, VERY tipsy, and most of all ... HUNGRY when we caught her and fiancé Eric Johnson hitting a Hollywood nightclub.

Sure, she had a dozen few drinkie poos, but it's no big deal -- not when you have a devoted driver ready and willing to make late night Jack in the Box runs!