Firstly, your title is fine, I'm sure.
Secondly, the reason this is happening is because Litleo has a 75% chance of being female, and only a 25% of being male.
Mathematically, the next 24 Litleos you get should all be female, but that's all literally an educated guess.
But yeah, it's still possible to get a male Litleo. Don't worry. :3
Hope I helped. :)