1 year anniversary ideas.

Monday is my boyfriend and mines 1 year. We're staying in for the night because I have class the next day and being a medical student I need as much time in the house as possible lol but I want to do something to surprise him, and be all sexy. I want to do something that I've never done for him before and make him happy. I dont want to do lingerie because im insecure with my body but What are some ideas? What have some of you ladies done?!