UNDERCOVER

Ok so im 17 and i love boys im boy crazy but i just have this feelin about females that a man can't fufill i love what us females have soft skin breast  curves and etc... i can see myself being more than friends with a female but less than lovers i have a boyfriend and we've been together for almost six months and i love him alot and he knows im a bit curious about females but he doesnt know that i really am more than just curious butto be honest if i found the right girl to fufill my curiousity i would cheat to do so. i need some advise from strangers so what do ya'll think i should do about my situation.