A few days ago I asked out this chick at work. She said she would think about it but she was very interested. About five days later, a new chick started at work. I was flirting with her all night, had her eating out of the palm of my hand. About ten minutes before I planned on getting her number, in walks the last chick I asked out. She goes "I hope you're taking good care of my baby sister! BTW are we on for Saturday? I'd love to go out." What luck. The younger sister is a hb8, I would much rather date her. The question is, if I blow off the older sister, do I have a chance with the younger, even though she knows I asked her sister out? Or is it hopeless, date the older sister and cut my losses. Advice?