Little sisters Kendall and Kylie may be making headlines with their budding modeling careers, but the older Kardashian girls are back making fashion headlines today with the announcement of a new clothing, home and accessories line. Khloe, Kim, and Kourtney Kardashian are teaming up with leading international designer Bruno Schiavi and his Australian-based apparel company, Jupi Corporation, to create everything from women’s ready-to-wear and lingerie to bags and belts. “We are excited to work with Bruno Schiavi in developing our first brand together,” stated the Kardashian sisters in a release. “His expert design sensibilities and amazing creativity, and his genuine understanding of female consumers everywhere make him the ideal partner.” The initial collection is set to hit stores in 2011, with plans to add luggage, shoes and kid’s fashion to the lineup at a later date. With the girls’ recent partnership with Beach Bunny Swimwear, Kim’s jewelry line launch and the fifth season of their hit reality show set to premiere, it really is getting tough to keep up with the Kardashians! –Jessie Goldberg

Kourtney Kardashian wants to clear up rumors that her beau Scott Disick is a bad boyfriend – and a bad father to their 7-month-old son, Mason.

"He's very loving and sensitive," the reality star, 31, told PEOPLE at the Mercedes Benz Polo Challenge at the Blue Star Jets Field in Bridgehampton, N.Y., over the weekend. "We were laughing with his parents about that. Scott's their little baby boy. And they were joking about [the rumors]. Scott's obviously not a monster."

In fast, Kardashian says, being a dad has just made her appreciate their relationship more.

"[Scott's] doing fantastic [as a father]," she said. "I love watching him with Mason. He makes him crack up so hard. He makes him laugh. It's fun to see them together."

But their son also seems to love spending time with his mother. "Mason is such a mommy's boy," Kardashian said.

For Disick, watching his girlfriend grow into motherhood has also drawn them closer together. "It's just one more quality that I love about her now," he said. "I could never have imagined her to be the amazing mother that she is today. And now it's just one more reason that I love her."

"It's a whole different world now that I have a child," he said. "And, yes, I have grown up quite a bit."