I laughed my ass off. It was so hard to keep from smiling. I love the line with the microphone, but the one where he held his breath is my favorite.

'You just killed Jesus. How do you feel?'

Haha, that just totally made my day!

I lol'd hard. All over the place, and then back again.

And I daresay this is quite the Christmas story. It warms the heart and cools the soul, yanno?

You just killed the baby Jesus. How do you feel?

AHAAHAHHAHA! My grandma once stole a baby Jesus from a manjer and sold him in a yard sale... so this was hilarious to me.

That had to be the cutest thing I have ever read, ever. And I have read a lot of cute things. XD

My fave part though:

"Batman, you just killed Jesus." Pressing an imaginary microphone to his nemesis's chest. "How do you feel?"

"Cold," Batman replied in curt words.

Amazing part. Made me burst out laughing. I, of course, also loved the kissing scene. Naughty naughty Joker (who is wet)! XDD

Anyway, yeah, fantastic job. Your writing was great, grammar was great, spelling was great, plot was great, just all great! I look foreward to reading more from you!

Au Revoir! D

Haha, nice. I loved all the random pop culture references. XD

Grammar-wise, my only advice is that you watch out for typos. For instance: "it's demise was a cruel struggled against man." It's should be its and struggle should be in noun form. Other than that, great job!