<human>: So my little brother is 17 and only 4 years younger than me so we get along very well. We recently got the idea to go to the local park to hit a few balls with his baseball bat.  We get there and take turns pitching the ball so the other can *try* to bat.  We're at it for about an hour and it gets to be pretty exhausting; the sun was blazing, and we were having to chase after the balls that were hit as well as the ones that were not hit and just flying past the batter.  We decide to head home after he bats one more set of balls. We had one baseball and one lacrosse ball because the lacrosse ball worked well as a baseball.  I pitch about three or four times and he strikes out of all of them and it may have just been me but he looks pretty down about it so I say: "Come on, just hit the shit out of this last one and we'll go home". 

Now, my brother is about 6'2" so far and this kid ain't no slouch. He used to do sports and wrestling in high school and shit. So we get into our respective positions ( about 30 feet away from each other)  and I let the ball fly, right at his bat (I found out later that he put everything he had into that swing). The ball left my hand and I almost immediately heard a thump right by my ear. I look up to see the ball straight up in the air, spinning from the force of the impact it had as it collided with my shoulder.  Fear grips my heart as I lift my arm to make sure it's not dislocated or worse.  It was fine, just hurt my pride. Didn't hurt much for a few minutes but then I slowly began to feel it as I took him back home. 

Feels a little better but now my shoulder is purple.

Provide a brief overview of the text.
<bot>: Underestimated my little brother and took a solid fucking rubber lacrosse ball traveling full speed directly at my shoulder. Great fucking swing! Hurts.