Jessica Simpson wants to "get married in Texas in the summer and get pregnant soon after."

BEIJING, Dec. 12 -- Jessica Simpson wants to "get married in Texas in the summer and get pregnant soon after."

The 28-year-old singer - who is currently dating American football star Tony Romo - is said to be desperate to tie the knot and start her family, after seeing younger sister Ashlee give birth to son Bronx Mowgli last month.

A friend of Jessica's told In Touch Weekly magazine: "Jessica recently sat Tony down for a baby talk. Unlike Ashlee, Jessica doesn't want to get pregnant and then get married. She's a little more traditional, so she'd like to marry Tony first and then get pregnant, ideally on their honeymoon.

"She wants to get engaged in early 2009, married in Texas in the summer and get pregnant soon after."

It was recently revealed Jessica is "convinced" Dallas Cowboys star Tony is going to propose to her over Christmas.

A source said: "Jessica has told friends she is convinced Tony will ask her to marry him over the holidays."