So one of my female friends who I have sexual tension with flashed me her boobs the other day at school and said "Like what you see?" I was kinda stunned but I said, "Not fair, now I'm gonna be thinking about this all day." Later that day ended up having sex for the first time. After that happened we talked about it together for a long time and we decided that we weren't going to flirt around the idea of dating anymore – we were going to start dating. So now we're in a relationship, but my biggest concern is that it's going to be a relationship built off of horniness and sex and not love for each other. That's not what I want as I genuinely care and love this care and from what I can tell she genuinely loves and cares for me too. But it's still something I'm worried about. And of course I think sexual attraction is an important part of a relationship, but how can I make my relationship about love and friendship and growing closer to each other instead of simply sexual attraction?
TL;DR – How do I focus a relationship on genuine love and closeness instead of simply sexual attraction?