One way we incorporate reading for fun, yet some additional learning into our homeschool, is to write book reports. I let my student pick the book she would like to read, which is currently an American Girl book (this is the one she is reading now: http://amzn.to/2l4iD95 ) (If you purchase from our link, a small portion of your purchase will go back to our site. Thank you for your support.)
I usually give her a set time to read a book- around two weeks- then she has two days to write the report. Not only does this help teach time management, but lets her choose what she wants to read.
This is something that works well for us. I encourage you to do what works for you. (A side note, book reports are in addition to her Abeka reading curriculum.)