Is it normal to be attracted to my daughters lesbian basketball coach?

My daughter recently started playing basketball with a new league,the coach is a lesbian,a stud,and I find myself highly attracted to her.I have been attracted to women in the past,but never to this level,never to the point that I wanted to act on it.There has been a little flirting between the two of us and I even find myself thinking about her while I'm having sex with my boyfriend.I always thought that I was straight but now I just really don't know,because if she was to ask me on a date I know that I would say yes,in fact I almost wish that she would!I find myself dressing a little too sexy on practice and game days and I'm just wondering is this normal??