At last night’s Paul Rowland penthouse party, Kai Kuhne explained why he isn’t showing this week. “An investor was pretending,” he told us, a little cryptically. Those financial woes might explain why Kuhne swiped a bottle of Svedka from the soirée. Or perhaps the designer just wanted a giggle out of models Behati Prinsloo and Iris Strubegger. Then again, maybe he was just drinking with a purpose.