Paris Hilton reportedly ended up exposing her underwear after getting drunk during the Valentine's weekend in Brazil.
The hotel heiress was said to have had one too many while promoting a new beer at a launch party.
The actress, who arrived with boyfriend Doug Reinhardt, was later seen resorting to embarrassing drunken antics, The Sun reported.
At one point, her thong was clearly visible through her purple off-the-shoulder dress while she was photographed on all fours, the paper said. The star was later left in an awkward situation when her attempts to display some sexy moves apparently landed in disaster.