CAGUILERA031708_02.jpgChristina Aguilera CAGUILERA031708_01.jpg Looks like Nicole Richie's not the only one keeping her pregnancy boobies - last night at Hamasaku, Christina Aguilera went out of her way to flaunt her maternity-enhanced mammaries!

Could Christina's display be a sign that she's reverting to the Dirrty girl we used to know? Or might Christina - who's been a model mom so far - have simply been craving some attention for her sexiness? We'll definitely keep you posted on this one!