They grow up so fast!
Cake (actually it was a pumpkin muffin) as promised. River, in typical Danger Bun fashion, showed no fear and waltzed right up to it and started chinning the unlit candle.
Simon, in all of his loveable glory, was a bit uncertain of the muffin's intentions at first. By the time he overcame this and went up to the muffin, he got photobombed by River.
After their photo shoot was over, they got a more bunny appropriate birthday treat--oats! I don't even want to hazard a guess as to how they would've reacted to the sugar in that muffin. It would probably involve us trying to pull River off of the ceiling.