That's the ultimatum Dallas Cowboys quarterback Tony Romo gave girlfriend Jessica Simpson after the 28-year-old beauty went on a post-tour party spree.

In late March, the Texas-bred blonde wrapped up her tour opening for country music titans Rascal Flatts, and she's been celebrating by cutting loose with a series of alcohol-fueled nights out, say sources.

"Tony is fed up," the insider told The ENQUIRER. "She's been pressuring him to marry her and have children, but he's giving her a firm 'no' until she cleans up her act."

With her career at a standstill, Jess has shifted her focus to convincing Tony that the time's right to get married and start a family.

"But Tony won't even consider moving forward with Jess until she cuts back on partying," said the insider.

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