red/yellowfoot cross, fertile?

[4theloveofchelonians]

I have a red/yellowfoot cross. I know that most hybrids are sterile, but from what Ive been reading there is a possibility they will be fertile because they are so closely related. I keep her with my breeding group of RF. she is 6 years and for the first time my males are interested in her. They have never shown any interest in her before. Im curious if anyone has any experience with crosses and what the general consensus is on the subject of breeding her with RF if she is fertile. this is her bellow.