We gave our son Christmas presents but not my step daughters, and they found out
That is horrible I hope you are joking! Why would you get your son something and not your step daughter?
Because I am a gamer, and she is a stupid cunt.
You didn't want to give gifts to kids that are not your own, but when they found out they were probably very sad. Next time you need to give them double gifts to make up for it. This is the only way they will forgive you for your acting like you have favorites.
Are you fucking retarded? What the fuck are you talking about? They are happy because of gifts from their parents. What you are saying is wrong. I don't give a fuck about them. Its only Christmas present and they are fine.
That is still mean to do as a step parent. It is not okay to exclude step kids at Christmas. You try to be more inclusive as a way to bond the family together.