Question for breastfeeding mama's. I'm going to a Christmas party next weekend and I'm wearing a…

Question for breastfeeding mama's. I'm going to a Christmas party next weekend and I'm wearing a dress that I can not wear a bra. I'm 8 months into breastfeeding but sometimes my left boob still leaks. Trying to figure out what to do for the party. Any one mom's have this problem??