Stop wanting to have sex with young dragons!
So what if they've "been around the block a few times"? So what if they dress provocatively with really short tunics and thigh-high boots? So what if they've likely experienced more of life and the world than you have? So what if they maintain their high energy and youthful charm in spite of the inherent hardships of a long, long life? So what if their species' evolution has made them perfectly capable of having a physically and psychologically healthy pregnancy and being competent parents in spite of their comparative youth? So what if they're perfectly open to relationships with humans and staying together with them even in old age, letting you experience their pure, lovey-dovey energy all your life?
It's wrong, and disgusting! Please, don't do it!