Being gay, such as you are, will be a "shock of a lifetime" for those parents who love you. No getting around that. They will feel like utter failures so my advice is...DON'T TELL THEM. I wouldn't want to know that my daughter goes south on some nipple-pierced bulldyke from West Hollywood. Don't be cruel to the ones who treated you right all these years. Hide the girlyfriend, act like you always do, and no one gets hurt. Bring "Butch" around and all hell will break loose. Easy decision if it's put in proper perspective...as only BushCheney2007 can...