Aurora Borealis ? Billy Batson x Reader

OMG Who can hear that IMAGE GIF!? I CAN HAHA

Me and Billy shoot in the sky side by side right where Sivana wants us.

"Ya know Sivana. In a thousand years, I did not think I would fight you." I say to him with an angry glare.

"You saw it coming though."

"I didn't actually. I had my suspicions when you knew about Anna Baker, but suspicions are all they were. Tch. Should've been more."

I can see Sivana roll his eyes under the glasses then his head turns to Billy who glares at him.

"Now, let's try this again." Sivana says lowly.

"Two against one. It's not going to be fun." Hey, that rhymed.

Sivana tries to punch him but Billy's reflexes are on point and Billy grabs it, before turning it back with his strength and giving Sivana a smug grin.

Showtime.

Determination thrives through my veins as Billy grabs Sivana and throws him down, spinning goofily in the process.

Sivana grunts and lands on the ground, dropping the staff.

"Y/n, keep Sivana occupied. I'll help our family."

I smirk and nod my head. Billy flies over to our foster family as I go over to Sivana. I sweep the staff off the ground but Sivana quickly jumps to his feet.

"You're very determined, I can feel it." He growls.

"Gross."

I send him flying by shanking him with the staff before running off in the opposite direction. However, he lands inches in front of me and tries to zap me with blue lightning. But I have enough time to do a barrel roll and slide right under his legs, pointing the stick sideways and tripping him up.

"What's the matter Sivana? Too slow?" I ask innocently. I flap my eyelashes for effect which piss him off. As planned. He swipes a punch at me and I duck before kicking him in the nuts.

"Y/n look out!" I hear Freddy exclaim. Sivana gets to his feet and I realize...did he send a sin out without my notice.

Something grabs me from behind. I scream as it throws me far into the air. I manage to stop myself with my wings just as I see something from inside a blue stand and pull him in.

It quickly pulls him out and throws him into the Balloon Darts stand where the monster howls a mighty roar.

I quickly teleport to Sivana and attempt to kick him, but he grabs my leg and throws me into a tree, having all the Christmas lights fall on me.

I groan with pain as Billy's family stands there shocked, inches away from me.

"That's his power matrix." Freddy says.

"His what-what?" Eugene asks as I help myself and crawl out of the Christmas lights tangled around me.

Thanks for the help, love ya lads!

"When the demon guys leave is eye, he loses his powers. That's why the Batarang hurt him." Freddy says coming to the realization. My eyes widen to hearing this and me and Billy exchange glances.

When all seven sins are out, there are no sins inside of him to make him full of power!!

"HEY!!" Mary shouts. "Over here!"

"Mary, what are you doing!?" I whisper shout. Is she insane!? They're powerless!

You can tell Sivana has totally heard it because his footsteps slow to a halt.