There's a Venn diagram, in the middle is stuff like both of us trying to get laid, wanting someone to get their life together and a place to stay, the idea of being a stripper, dogs, food, etc.. people are interesting, so a lot falls in the middle. Flirting is fun. Sex and personality and psychology. Maybe you share similar character flaws. She plays guitar, we both like to be impressive/get attention and affection.
Jig, if ass threw itself at you and you also wanted to give someone a little help, you'd be at risk in this situation. So if you have a dick and are on some level a good person, you have two things working against you