Forgotten mockingjays

What if Katniss was pregnant before the quell, with twins. Cause of the rebellion, Katniss and Peeta has given the twins up for foster care, in hopes to get them back when they understand why they were given up. But what if they forgot about the twins. This story takes place 12 years later and there twins are living the dream life, famous since age 6. But The daughter Willow as had cancer twice, but with brother Rye's support has won the battle twice along with being famous. They both are famous for there dancing, singing, acting, and modeling. Watch as Willow and Rye go through life without knowing how important there parents are, till one day Willow gets a call back from an audition and has gotten a role in a biography movie about Katniss Everdeen. Will Willow and Rye's question finally be answered? I guess you will have to find out.

(Sorry if this is a really bad fanfiction this is my first one)