My son finally drew on the wall.
It's not something we're happy about, but it was bound to happen with two boys. I'm surprised it's taken this long to happen since I keep finding pens around and I am continuously taking pens from the kids. The offending child? NATHAN! The younger one.
It's a dry erase marker, but doesn't want to come off the wall. The photo is after a washing attempt, so that gives you an idea how long this may stay around for.