Karruche Tran, Chris Brown's girlfriend exposes her boobs at 'Free The Nipple' event

It's the season for showing off nipples. Chris Brown's main chick Karruche Tran wore this outfit which showed major side boobs to the Free The Nipple Fundraiser which held at Skybar in LA yesterday, hosted by Russell Simmons. Some US celebs are trying to get instagram to allow nudity. Chris Brown was at the event. See more pics after the cut...