There is no way you can lose fat in one part of the body; you have to work on the whole body to get results. Start by jogging, running, rope jumping, swimming, biking, and try some leg rolls. Drink a lot of water and keep at it. See www.wikihow.com/Get-Skinnier-Legs for more on this.
The 4 exercises I'll recommend for you to rotate through during these your workout are mini-trampoline jumping, fast bodyweight squats (40+), jumping rope, and jumping jacks.
I'm sure you're familiar with each of those so there's no real need to explain them to you. If perhaps you aren't familiar with any of them, definitely do a Google search to find out more about the exercise(s).
All these exercises reduce leg fat while firming your legs up. This is the ultimate easy way in how to get skinny legs fast without even leaving your home.