I do not own Batman Arkham Asylum. I only own Tiffani and Lexi.

Story start

Batman dodged the dagger and threw a batarang at the girls, which Tiffani caught with a smirk. "Oh, how neat, I've always wanted one of these," Tiffani said and Batman stared at her for a second before he threw another, which she also caught. "Is that all you have, Batman?" Tiffani asked as she started to walk towards Batman.

He looked around before running deeper into the morgue and the girls heard him coughing. "Scarecrow must be in there," Lexi said as she stepped up to stand beside Tiffani.

"Aw, now he gets to have fun with Batman," Tiffani said with a pout as she pocketed the batarangs.

"We could watch," Lexi said and she opened the door, which Batman had just run through.

"Great idea," Tiffani said with a laugh as they entered the room and took a seat on the railing that was in front of them after they entered the room. They watched Batman open two body bags, which just had two inmates' bodies. They could see though that Batman was obviously seeing something else with the turmoil that was flowing through his body.

Lexi jumped and Tiffani laughed gleefully when Scarecrow popped out of the last body bag and Batman stumbled away from the bag. Scarecrow was gone and the girls watched as Batman ran out of the room. They followed and laughed when they saw him jumping around and then swinging at objects or people that were not there.

"Wish we had popcorn," Lexi said and Tiffani nodded before she spotted Scarecrow, who was staring at her. She winked at him before focusing on Batman again.

"Hey can I sing the song?" Tiffani asked with a pout at Lexi.

"What song?" Lexi asked confused and Tiffani smirked before humming the tune of Jingle Bells. "Do you have to?" Lexi asked and Tiffani just nodded. "Go ahead," Lexi said before focusing her attention on a still freaking out Batman.

"Jingle bells, Batman smells, Robin laid an egg, the Bat mobile lost a wheel and the Joker got away," Tiffani sang as loud as she could. "I love that song," Tiffani said with a laugh before she saw that Batman was calming down. "Time to go," she said and grabbed Lexi's hands and they ran out of the room.

Scarecrow was nowhere to be seen as they left the room. Lexi pulled Tiffani to a stop when they spotted their doctor. "Nice to see you again Dr. Hartford," Lexi said with a cruel smile as she watched the doctor freeze in place. The doctor looked like a deer frozen in place in front of a bright light.

"Oh goodie, we've been looking for you," Tiffani said as she pulled out her dagger.

"Come here doctor, and maybe we won't hurt you as bad," Lexi said before laughing when the doctor ran away.

"Yay, I love when they run away, charge," Tiffani yelled before running after the doctor. Lexi followed behind with a twinkle of delight in her eyes. Lexi knew that it would not take long for Tiffani to catch the doctor.

"Right on time," Lexi thought when she heard a yell and a crash. "Why do you always tackle them?" she asked as she approached Tiffani, who was restraining a struggling doctor on the floor.

"It's more fun," Tiffani said before she was kicked in the gut. "That hurt," she screamed before punching the doctor in the gut. "Now you know how it feels," she replied with a smirk as the doctor curled up on the floor with her hands on her new injured area.

"Drag her in here, it's empty," Lexi ordered Tiffani and walked ahead into the empty room that she spotted. Her eyes lit up when she saw that it was a room for surgery, which meant the room was full of scalpels and other pain inflicting objects. "Perfect," She whispered as she picked up a scalpel while Tiffani dragged Dr. Hartford into the room and tossed her onto the operating table.

"Can I be the doctor?" Tiffani asked excitedly as she jumped in place and Lexi shook her head. Tiffani went to protest but a glare from Lexi stopped the protest in her throat. "Fine, I'll be the psycho nurse," Tiffani said with a pout before laughing as she put on one of the facemasks that doctors and nurses wore during surgery.

"Dr. Hartford, it seems that you are very ill. I was very touched when you wanted to help us, but now it is our turn to help you," Lexi said condescendingly with a fake smile before she and Tiffani strapped the doctor to the table.

"Let go of me you psychos," Dr. Hartford screamed before Tiffani found some surgical glue, which she used to glue the doctor's lips together.

"Much better, thank you nurse," Lexi said which caused Tiffani to laugh again before Lexi started to make a bloody picture of the doctor's form.

"She looks much better already," Tiffani said after Lexi was finished. "Well done doctor," she said and Lexi just washed the blood off her hands and then took off her mask.

"Well, well, well, you two sure had fun," a voice said from the doorway. The two looked at the door to see Harley Quinn standing in the doorway.

"Yup," Tiffani said brightly before taking off her mask.

"Are you two the ones that Mr. J was talking about earlier?" Harley asked and Lexi shrugged.

"I guess, he talked to us earlier on the television," Lexi answered while Tiffani looked into the drawers and cabinets in the room.

"Mr. J wants to see you two," Harley said as Lexi and Tiffani noticed a group of thugs behind Harley.

"Why?" Tiffani asked as she eyed the thugs cautiously.

"Don't know, now come on," Harley said as she turned her back to them and left the room. The thugs moved out of the way since they feared Harley. Lexi shrugged before she and Tiffani left the room. They were not too happy about the thugs following them though.

A thug muttered "Just one touch," before Tiffani felt someone grab her behind. Tiffani froze before she swung around and broke the thug's nose.

"Do not touch me," Tiffani growled before holding her dagger to the man's throat.

"Same goes for me," Lexi said as she toyed with one of her handguns when she saw one of the thugs reaching for her behind as well. The thug's hand disappeared quickly and Harley just laughed ahead of them.

"You two should find a guy like Mr. J, oh, but you can't have my Mr. J," Harley said joyfully at first before ending in a deadly tone.

"He's all yours," Tiffani said before walking away from the thug and walking over to Harley, who she threw an arm around her shoulders. "Girls, don't steal other girls' men," Tiffani said seriously before smiling at Harley.

"Good, well there are plenty of men here for you two to choose from," Harley said and Lexi looked at her with an unreadable look before laughing.

"The only problem is if they can handle us or not," Lexi said and Tiffani just chuckled before the three girls and the thugs made their way to the mansion where the Joker was. Harley led the way still and soon, they were at the room where the Joker was waiting.

"Mr. J, I got the girls you wanted to talk to," Harley said as she pushed open the door and Lexi and Tiffani followed behind her.

"Oh Harley dear, you're wonderful," Joker said from his seat with his usual smile on his face.