She likes it when you take the sexual initiative and lead, then do just that. Never wait for her to do this.
Buy her a small vibrator and while giving her oral, use it at the same time, giving her a mind blowing orgasm. Then have sex with her afterwards. Try that and see if she likes it.
When doing doggie style, put her legs tight together, your legs on the outside and pound her, while giving her a back rub.
When doing missionary, her legs tight together, your on the outside and move up a few inches, hitting her clitorus when you are in her.
Spoon is good too.
Have her ride you, but facing away from you, holding her back with your hands, reverse cowgirl.
Do 69, but you are on top.
If she's adventurous and not just vanilla sex, try foot jobs and anal.
Sex for her first is the rule, then you afterwards.