Britney Spears is taking steps to cover up after her underwear-free partying landed her in publications around the world flashing her privates. The pop superstar has twice been caught without panties in the past week, while partying with new pals Paris Hilton and Lindsay Lohan, among others. But now, in an effort to keep her privates private, Spears has spent a whopping $3,800 (GBP1,948) on underwear. News website reports the singer was spotted buying thongs and bras from trendy Hollywood boutique Le Bra Lingerie, where Katie Holmes went shopping for sexy lingerie before her recent Italian wedding. A source says, "Britney came in with a female friend. She tried on everything she bought. She's a 36C. She said to her friend, 'I could live here.'" Among the single mother-of-two's reported purchases were a camisole and thong set for $1,666 (GBP854) and a sexy black corset and matching red thong for $380 (GBP195).