Is Jessica Alba Having Sex At The Beach?

A lot of people are assuming Jessica Alba was banging at the beach. You can't tell by these pics, and her boyfriend, Cash Warren, has his trunks on, which could be a good disguise so we won't think he's poking through.

But, just look at Jessica's face.
She's not having sex. She's just trying to fart softly. Looks like she's holding some gas in. Lesson of the day: Don't eat beans before you hit the beach, before you receive oral, before you do a lot of things...

Here's some recent pics of the couple all covered up while in Vancouver.