"I didn't expect this at all ... I was in such shock," she told the magazine.
Kardashian, who previously vowed to spend the year single, came home to find her boyfriend of six months down on one knee in her bedroom. "Will you marry me?" was spelled out in rose petals. Humphries, 26, then gave her a 20.5-carat Lorraine Schwartz diamond ring.
After the proposal, a family celebration awaited the newly engaged couple — and nothing says a Kardashian party like a few horses.
"Kris really didn't want a big celebration, but he had jokingly told my mom he'd be fine if there were mini-horses there," Kardashian said. "Later that night at the party, my mom brought out two mini-horses, covered in glitter, for us! It was hysterical!"