In the summer of 2010, shortly after her breakup with Joe Jonas, Demi took a week long vacation to Cabo San Lucas.

The skimpy black bikini she picked out probably showed off a little more than she wanted including a new tattoo under her right breast

And of course, we got a great view of her backside, including a very nice peak at her butt!

The following day we got several new pics which gave us a better look at her new tat…

And that baby blue bikini also gave us another look at her amazing ass.

This wasn’t the first time we saw Demi in a bikini of course. We’ve had this “private” boat pic which was leaked online…

Plus this pic from way back in 2004 of Demi and Selena together.

And let’s not forget about the great bikini shots the paparazzi got from her Bahamas vacation of 2009

Don’t mind little sis Madison in the way.

But it would have been nice if she dropped that towel.