Bot or Script that Auto Follows and Unfollows....

Does anyone know of a script that follows people from the follower list of an account (and unfollows if they don't follow back)? I don't want to sound lazy (who am I kidding I am), but my plan is to follow the followers of a bigger account in my niche to help grow my account kinda but not really organically.

Help? Anyone?...

There are so many bots that can do that.. FollowLiker, Jarvee etc. Just use the search field

I'd suggest you to get Jarvee. The other bots are cheaper but not as good as Jarvee. Also the developers are the fastest to update it.