Advice please!!!

See I know this isn't exactly to do with ttc. But I want some advice and words of encouragement... See my sex life is starting to dwindle as my partner thinks I only want sex in order to conceive however I have decided I want to try to dress up sexy for him! I have a French maids outfit but I feel shy and embarrassed about wearing it for him as I've never done anything like this before!! Anyone have any advice or ways to overcome my shyness before I attempt to put the outfit on