I am a woman, 33, and i have been friends with my best friend for more than 20 years. I have always considered her pretty but lately I keep thinking she is sexy as all get out and i just want to fuck her. What makes it worse (or better?) is that she is bisexual & up until now i always thought i was straight. I can't stop fantisizing about her, How the fuck the do I remedy this without screwing up my friendship?