just be honest and up front with her and tell her about your desires. as for knowing about her previous sexual experiences, it's been two years!!!!!! does it really matter? as long as she's willing to work with you on the current state of your sex life, what's the big deal? if she tells ya, she tells ya. if she doesnt, don't worry about it because you know she loves you more than anything in the world and that's all that should matter
