try to set the mood how about a nice candle light meal & a bottle of wine & may be even a movie if you know what I meen then take it from there if you have done the same ting for so long anything new will make you both unsure if you like it or not at first but the more you do it the more you should like it

when I got married as good as my sex life was back then it was the same thing but now after 13yrs together we have tryed tings that we would never have done back then at 17yrs old some things we liked some we didnt & dont do any more but we still try new things we both make a noise when we have sex but not to loud cause of the boys lol hope you get things sorted dont rush in to trying everything all on the same night just try something different every now & then & im sure you will find something that you both like good luck & happy playing