Lauren Conrad Gets Cozy in Cabo with William Tell

And of course, Miss Conrad was the center of attention in her pink and gray two-piece Missoni bikini as she worked on her tan in one of the private cabanas.

Lauren and William have been seeing each other since February, but this new Mexican getaway is a sure sign that things have gone from casual to more serious.

In a past interview, Conrad copped to having insecurity when it comes to parading around in a bathing suit- “On the (previous) vacation to Cabo, I wore a bathing suit on the beach for the first time in years. Usually I'm just petrified. A couple of years ago someone zoomed in on my cellulite and it was so mean. I took it really personally. I haven't worn a bathing suit in L.A. in years because of that. I haven't met a woman without insecurities. You just have to learn to play up the positives.”