Cuteness inbound.

Simon never expects hugs from above!

Aerial bunbardment.

You could actually see the bad idea form in River's eyes just before she pounced like a big cat in a nature documentary.

Mischief managed!

River solemnly swears that she's up to no good.  In case you were wondering, this is the face I saw just before River decided that it would be a good idea to jump down onto an unsuspecting Simon's head.  I also just realized that the words "safe and comfortable" are printed on the side of the box Simon was relaxing in prior to River's aerial sneak attack.  Well, as my husband says, "Safety is relative."