Oooh my aching legs

Today I decided to take my 5 year old daughter along on a run to see how she would do, since she loves to ride her bike. I mapped a loop that goes 5-5.5 miles, with cut offs that shorten the loop to 4 miles and 3.5 miles. I am running a long and she is happy so when we make it to the 3.5 mile cut off I see she is doing great so I keep going then at the 4 mile cut off she is still doing good so I think to myself, "great I can get a decent run in today." Once we hit the point of no return she decides she is tired and starts whining to go home or lets go to the park etc. She slows down....way down (she has climbed a couple good hills for a 5 year old) and she won't keep up with me. The last mile or so of the run took FOREVER, and now my legs are screaming at me from running so slow. No amount of stretching is helping. I guess I need to medicate. Time for the motrin!