POP STAR JESSICA SIMPSON SLEEPS WITH HER SISTER

POP STAR JESSICA SIMPSON SLEEPS WITH HER SISTER

NEW YORK (Wireless Flash) -- 98 Degrees singer Nick Lachey won't want to hear this but his virginal girlfriend, pop star Jessica Simpson, is sleeping with someone else: Her own sister. The 20-year-old singer tells "Popstar" magazine that she and her sis still share the same bed -- just like they did as kids. In her words, "I love to sleep with my sister. I don't know why...we have just always slept together." That's not the pop star's only tight family bond: Simpson also confesses that her mother still picks out all her clothes and dresses her.