Heidi Klum and Seal Are Done Making Babies

Supermodel mom says, "Having four children is quite a big family. We're complete"

Just because Heidi Klum designs maternity clothes doesn't mean she's hoping to slip into mommy-to-be fashions anytime soon.

"Obviously I love having a big family, but having four children is quite a big family," Klum told us last night at a party for her Pea in the Pod line Lavish. "We're complete. We have everyone around the table that's supposed to be there."

Perhaps Klum and her husband, Seal, won't have time to add to their family because...

The two are reportedly developing Love's Divine, a reality show for Lifetime in which they travel around the country to counsel couples in trouble.

Klum is also celebrating her 37th birthday June 1, but says she has no big party plans. "Go to dinner with my husband, [something] low-key," the supermodel mom said. "I like to plan for other people; it doesn't really have to be for me. I like to plan for the kids' birthdays.

Seal has already given Klum her birthday present—but by accident.

"It's a pretty flower ring," Klum gushed. "My husband was going away and he asked me to help him pack a little bit. We were in his closet, and I was looking for things for him to take. I open this box and there's this gorgeous little sparkler in there that was looking into my direction."

—Reporting by Brett Malec