How can we spice it up?

So ever since having our son two years ago, our sex life has been pretty vanilla. We have sex with either me on top or him from behind, I dont even look forward to it anymore because it's so boring😭. I'm somebody that likes rougher sex but hes always the same old (I feel like its because he thinks he may cum too quick😂). Advice? Oh yes, I should also mention that we only have the couch to have sex on 😂 we only have one other bedroom and that's the one we share with our son. Thank you!