Enjoying a retail romp, Jessica Alba was spotted on her way out of a wedding dress store in Silver Lake along with her sister.

The “Fantastic Four” babe reportedly spent more than three hours inside the store, looking a bit worn out as she made her exit in a grey t-shirt layered overtop a white shirt, with black stretch pants and black flats.

In related news, Jess is gearing up to head out to Washington DC for President Barack Obama’s inauguration this weekend, where she’ll be hosting a Declare Yourself party on Sunday night.

According to a report, uber-hotties Maroon 5 will be giving a performance and Samantha Ronson will be spinning at the shindig, and there will be plenty of celebrity presence throughout the evening.