Quick fix

I've been slowly losing my baby weight. I'm about 6 months pp with baby number 2, and I'm 4 pounds away from my pre pregnancy weight. I've done it the old fashioned way, clean diet + being active. I'm heading to the beach in 2 weeks for a girls weekend. I want to look good in my bikini. I'm proud of where my body took me during pregnancy and where I am now, but i know I'm not finished yet. What are some safe ways to drop pounds fast? I realize I might gain it back after the weekend, but I know I can work on that! I'm also still breastfeeding, so it's gotta be safe for that, too. I'm thankful I have no stretch marks, and a flat tummy, but i need to tone it up a bit more, too!!