This is a really simple hair style once you master doing a twist out with your natural hair.
1) Follow the steps for doing a twist out. You can do a braid out if you prefer also.
2) Choose which side you would prefer to have the flat twists on. Make medium size part using a comb. Hold you parts using metal clips.
3) Use a small amount of gel and carefully flat twist the section of hair. I prefer to do single strand flat twists. Secure the hair with a bobby pin. Repeat. ( I do about 3-5 flat twists depending on the look I want)
5) Tie your hair up at night to maintain and retwist the loose portion in 4 or 5 large twists.