You guys were walking from school and doing random shit, she asked if she can go to your house so she can hangout with you.

She hasn't been in your house yet but you said sure because you wanted to spend time with her, You guys kept walking and holding hands and sometimes a kiss once in a while

You guys made it to your house and you opened the door as she walked in your house, she started to explore like a little kid, picking up random stuff and putting it down