So I have lost most of my tan from my las Vegas trip three weeks ago...except for the tan on my chest/boobs. It still looks like I was in my swimsuit yesterday and my chest is brown and my boobs are blindingly white where they were covered by swimsuit.

I wants it to goes away! It looks silly when the rest of me is back to my pastey white self!

Any tips on how to get rid of a tan faster?

I would say use an exfoliating body scrub.

Yeah the exfoliating will help, but it will just take time. I know, not what you wanted to hear. But as a pasty individual living in a hot climate, I suffer from some really weird tan lines sometimes, even with massive amounts of sunscreen. I am still hating some I have from the beginning of summer, and now they have merged with my new Mexico lines. AAAAHHHH! At least you're not alone...

why don't you try a nice little gradual tanner to use on the pasty parts?

I use Avon's Skin So soft Satin Glow Absolute glow gel. It works beautifull and makes for a nice subtle bronze color. You could jsut easily spread a little vaseline on the tan parts and use the gel on the not so tan parts and then rub in the vaseline. Extra benefits is you get moisturizing from the vaseline.