LOS ANGELES -- Nick Lachey wants what's his, and maybe what's Jessica Simpson's.

In court papers filed Friday in response to Simpson's Dec. 16 divorce filing, Lachey said he was reserving the right to seek spousal support, even though she has asked the court not to give him any.

The singing couple, who starred in their own MTV reality show, "Newlyweds: Nick & Jessica," had no prenuptial agreement.

He cited irreconcilable differences for the dissolution of the three-year marriage.

The 32-year-old Lachey also asked the court to confirm that "miscellaneous jewelry and other personal effects" are separate property, as well as his earnings from after the date of separation and other unspecified assets.

He said they separated Dec. 13, although she claims it was Nov. 23.

Lachey, who gained fame as a member of the boy band 98 Degrees, had more earning power when the couple wed in October 2002. However, Simpson's fame skyrocketed during the marriage. The 25-year-old singer-actress reportedly earned more than $30 million last year, including earnings from her big-screen debut playing Daisy Duke in "The Dukes of Hazzard" movie.