see through see through Last night Lindsay Lohan popped her cherry at the "Rock The Kasbah" event at Vibiana downtown, benefiting Sir Richard Branson's Virgin Unite non-profit foundation, where she wore a see-through top to the fete which was also attended by Paula Abdul and Gavin Rossdale.

It's not like it's anything we haven't seen before, but ya'd think Lindsay might try to be a little more demure considering her latest troubles and, of course, considering it's for charity!

Lilo didn't stay at the event long, leaving around 11pm to head over to Villa to meet up with Samantha!

The girls have been careful to keep their relationship on the DL as of late (no doubt due to Sam's family's disapproval) but, much like Lindsay's exposed boob in this pic, we don't think she'll be able to keep it under wraps for much longer.