One of my favourite ex-girlfriends is a very strong woman, she's strong in her soul to fight the bad things life brought her and to be the best possible mother for her son despite them. So a physically strong woman doesn't scare me too much, and I think she can be very sexy too, as long as she hasn't an extreme body builder physique, that I don't like (but I actually like female body builders that work to develop their muscles, but preserving their hot curves).