Cut the sleeves first before you wash it. Don't cut it into one step, cut the front side first then the back side, follow the sewing line.
Do the same for the left side until it become sleeveless and have a vest cut.
Now, lets begin to washed it. Use bleaching (Bayclin), spilled it all over the jeans. There is no special pattern or what, it's up to you =) and wait until it's a bit dry.
After that, mix water with the bayclin (half of the bottle or more) and wait around 20-30 minutes. Put a rock to make sure that whole of the jeans are bleached.
Lastly, you just need to washed it like the other clothes. May fortune be with you!
Yay yay it's done!! Mix it with black so everyone will look at your bleached jeans.
You also can repeat the bleached's step for your skinny jeans.Gud luck girls!!!