Chugga Chugga!

Mary reported to me that the other day she came out of the shower to see that Nathan and Sarah had created a train in the living room all by themselves. The train included Sarah as the conductor and Nathan, a baby doll, Tigger, "Sneakers" the dog, and Eeyore as some of the passengers. Both Nathan and Sarah were making the necessary train sounds and were clearly proud of themselves.

As you can see above, Sarah is using her arms while she makes the train sounds.
There is also a basket in front of the train that was part of the trip that had blankets, books, and a few toys. Looks like they had some fun.
Nathan and Sarah generally do an amazing job playing together and with each other. If Nathan wakes up before Sarah the first quetsion he asks is "where's Sarah?" and he gets so excited when she does finally wake up. Pretty cute kiddos and buds for one another!