Lazy Sex......

So right now I’m kinda stuck. My favorite position is missionary but only because I don’t have to do a lot of work, my bf literally does everything and i still cum. This is not because I’m tired from work/school but because I’m too lazy to get on top or do other positions. and if he’s going to do everything why not 🤷🏼‍♀️ i still have fun but I want to start doing more (Because I’m fully capable) it just doesn’t feel absolutely necessary. Has anyone ever experienced this? Wondering if I Am just lazy? Tips to break the cycle?

P.S. we’ve been together about a year and a half and are happy so it’s not about him. Thanks