If you do evil to an evil person is it totally evil?

When I was a boy of ten there was a bully boy in the
neighbourhood. He would torment me and threatened to
beat me up. I would cry and he would tell me to run
away. This happened a number of times.

When the years passed I grew up bigger than the bully
boy. I would see him with his punk friends but there
was never any trouble. I wondered what I would do if
I ever encountered him alone.

One late night when I was walking home I saw what seemed
like a girl dancing in the big field made up of two school
fields. When I investigated I discovered it was not a girl
but a young guy and this guy was the bully boy. He was not
dancing but he was so drunk / stoned that he was staggering
on his feet. I thought it was ironic that I would help this
bully boy home. He noticed me and was rude and abusive telling
me to f*** off. I stood there and then he threatened to
beat my face to a pulp. It all came back but this time I was
angry. I made my fist hard and was going to slug him down to
the ground. Then I noticed something and had a far better idea.

I noticed he had a round a** in his sweat pants. I knew what I had
to do but did not want to be seen. Where the two school fields met
there was a dip in the ground. Perfect place, away from the streets
and I would be somewhat obscured from view. I carefully followed this
boy as he got closer to the dip. I know he would shout and be loud
so I needed to gag him with something. I had nothing in my pockets
to use and then I realized I could take off my t-shirt, roll it up
and put it in his mouth. He got closer to the dip and my heart was
pounding in my chest.

I did a final look around, no cars, no bicycles and no one
walking. I took of my shirt, rolled it up and charged right behind him.
I pushed him and he flew to the ground.
I shoved my shirt in his mouth and muffled his shouts. I told him
in a deep disguised voice to be still and take what I was to give
him. I yanked his sweatpants down to his ankles and pulled up his shirt.
He looked like a girl with a smooth back, slim waist and round a**.

I took down my shorts and proceeded with my revenge. It took a
while but I finally shoved my hard c*** right up his bubble a**.
It was so exciting to pump his a** bare chested. I lustfully panted
in his ear. It did not take long and I shot my load right up him. I pulled
out thinking what am I doing? I pulled up my shorts and yanked my shirt from his mouth. I saw his face and it was not frightened or angry. He had
a look of Wow, like a nice surprise. I took off and ran away
thinking how he did not struggle and maybe he enjoyed it as much as I.