Doing the splits is a bucket-list thing for many. But here you can achieve that, in a gradual, step-by-step manner with the Splits workout. Make sure you maintain form throughout. Do it regularly. Add EC because you know you must and the results will soon manifest themselves. Plus, the added flexibility will totally change the way you use your body.
Tip: If you are doing this routine post-workout (you are already warmed up) you can drop the jumping jacks and proceed to the side leg raises right away.
Extra Credit: Do the side leg raises non-stop.