I have a female aquantence. She later followed me back a week later and started liking a lot of my pics, including some that are years old. She even commented on a couple, complimenting my art.

How can I turn this into sliding I the DMs and asking her out? She's 9 years my junior (I'm 31, she's 22). So I don't want to seem like the old creepy guy. But 30 somethings pull 20 somethings all the time without being creepy.