Do you have sex the same way every single time?

So my SO and I have fallen into a bit of a routine when it comes to sex. Like the same three moves in the same order. Don't get me wrong, we both get off and it's good, but sometimes I wanna mix it up. I've talked to him about it before and he said he wouldn't mind if we did something different sometimes, but he never ends up doing anything different or wanting to if I mention it. What should I do? I don't want to harp on the subject because we've had this conversation several times.