Credit: Sara De Boer/; David Becker/Getty Images

Spencer Pratt and wife Heidi Montag have been in the news lately: Heidi's extensive plastic surgery; Spencer's Twitter outburst at Hills costar Audrina Patridge; his drama-filled leave of absence from the show; and the couple's reported sexual harassment claims against show creator Adam DiVello.

But Stephanie Pratt thinks her brother and sister-in-law remain stars to look up to.

"I think we've all grown up," Pratt, 24, told of her Hills castmates at Thursday's Hot Hollywood party at Drai's Hollywood inside the W Hollywood. "The problem is that anything bad we do is so magnified," explained Pratt. "We all did a pretty good job of being OK role models for everyone."

Not that she is is in contact with her combative sibling. "He's my big brother and I hope he knows that I love him...I don't know how they are, but I heard they're still really happy."

Of the couple's alleged sexual harassment suit, she said, "I really stay out of it. I don't know what's going on."

In January, the younger Pratt was sentenced to three years of probation for her October 2009 DUI bust in L.A. and her physical appearance has also transformed dramatically since debuting on the show. "Thank god for being on the show," she told Us. "Because it really has helped my style and appearance."