MUD SLINGING: Doing the highland fling’s her thing, so model Coco had major jitters about pulling off her dramatic mud fight, staged at the end of Jean Paul Gaultier show Saturday with Serbian actress-cum-model Bojana Panic. “I was really nervous that the audience wouldn’t get it. When we started I didn’t know if people thought we were having a brawl or something then after a while I started to hear laughter and clapping and was able to enjoy it more,” said Rocha, who said they had rehearsed the gig the night before, mud and all, followed by two long showers: one chez Gaultier and one back at her hotel. The gallant model even agreed to take on the losing role. “I had to lose the fight for reasons I’m not even sure I’m allowed to say...Bojana is three months pregnant so I had to hold back from really going for it,” she said.