Usually, the feuding is left to big sis Paris. But it was Nicky Hilton who snidely replied "no" (followed by giggling) when paps asked the 24-year-old if she wanted to wish Lindsay Lohan a happy birthday Wednesday night.
Perhaps Nicky's just standing by her sister's side, given the ongoing feud between her and LiLo. But apparently Paris' boy-toy Benji Madden doesn't feel the same sense of loyalty—he accompanied brother Joel to Lindsay's 22nd B-day soiree at Teddy's.