Okay, first, let's put some things back into perspective. You have a family, it might be dysfuntional (I don't know) but you have a family. Then, you would survive if you lost your boyfriend, I passed through many break-ups, many people I know did the same and we always came back stronger. You'll see, time, heals even the deepest of wounds. Finally, you have a big libido, that's perfectly normal and entirely natural, many girls wish they could be in your shoes! Don't worry about what others say, it's normal and much more spread to lush over other men or women. Lots of people do it, it's not wrong until you cheat on your boyfriend and if you can furfill your needs, that won't ever happen! You gotta assume your sexuality, embrace the fact that you have a huge libido and live with it otherwise you'll end up sexually frustrated and go for other men, which you don't want to do. My advice would be this : tell your boyfriend that you have huge sexual needs, tell him that its affecting you, that you need more sex, don't mention lusting over other men, don't ever mention lusting over other men but do tell him that you love him and that you need more sex. A lot of people are not comfortable discussing such things but it's fundamental for an healthy relationship. Your boyfriend seems like a great guy and if he really likes you and has no sexual problems, chances are he will accept in a heartbeat! Forget about being a pervert, any judgment from anyone, bring everything back to our human nature. We have needs, we must accept them and we must get our needs met, it's that simple. Believe me, I don't know how often you guys do it but it worked for me, it worked for others, it will work for you. If it doesn't and it could, sexuality is not an exact science, there are other solutions but try this one, if you two have a great chemistry, it will be A LOT OF FUN!

Have fun!