Sansa didn't spent a lot of time at her parent's house, even when she was living there for the summers. She always had some social engagement to go to or some boy who's house she was staying over at. She was the social butterfly of the Stark family and she always had been. On this particular day however Arya was able to catch Sansa at her computer in her room checking the network. Sansa didn't spent too much time on the network, but she did like to check it every once in a while.
Sansa looked up from her computer when she hear the door open and then smiled when she saw it was Arya. "Hey," she said. "Come on in. I was just checking the net. What's up?"