Christina Aguilera's Lasting Lingerie

Christina Aguilera takes hubby Jordan Bratman on a shopping expedition on Tuesday in NYC’s SoHo.

The couple picked up sunglasses at Myoptics eyewear store and then headed to the upscale lingerie store Agent Provocateur, where they spent over an hour in the fitting room. Cough, cough.

On Monday, Christina, 26, threw Jordan a Hawaiian-themed birthday bash at NYC’s Sky Studios to celebrate his his 30th birthday.

15+ pictures inside of Aguilera and Bratman…