reader x Batman jokers sis

first meeting as villian

Welcome back get your popcorn and drinks because we are about to get strated

Pic above is your villain costume but remember the face is covert with paint and a smask
*thirt view*
Y/n was sitting on the roof thinking to herself it kinda felt good to help the bat that one night but she couldn't feel that way her brother was the joker who she needed to help escape from Arcum again so she went off the roof and went to jokers secret layout and went to her room with out anybody spotting her and dressed in her villian clothes but when she looked into the mirrow and saw that fake smile she wore is dropped just like she did "why can't I be normal?" She asked herself "I need to stay focused I can't lose myself in a mid life crisis right now my brother needs ME!" She yelles and stood up and picked up her staff and put her crown back on and smiled widely "so much for being a hero.." she said and left to save her brother when she arrived at Arcum Asylum she started sneaking around the building and avoiding cameras then she found the room where every crazy villian hang out when they get the chance and saw joker their sitting in a chair watching tv when the guards and nurses left she went inside and hugged her brother "well hello their dear brother ready to go home?" She asked him "What took you so long ?" He asked and he dragged her away from the rest of the villains and criminals "lets just say I got busy but I will tell you another time " she said and grabbed his arm and pulled him past the gaurds to Harleys cell " oh harley~" y/n said to the door when she showed up "Suger you came for us!" She said and y/n nodded nothing to lose now they left the rest they were gonna get out soon by them anyway but for now they runned and escaped the mental hospital and got onto the roofs and jumped from roof to roof to get as far as they could when...

*jokers pov*
I knew I could count on her I shouldn't of hesitated but still it took so long!!!!we were almost home when batssie showed up hehe this could get fun it's only his and his stupid little birdie "look guys it's batssie maybe he want to come play with us " I told Harley and y/n but y/n instantly got behind me and didn't move after that I knew why she did that if her mask flew of it would be game over for her Batman saw her before "how did you get out joker?!" His little buddy robin asked me " well you see me very lovely sister here helped me with that~ " I told them and looked at y/n she didn't look back though she looked at the ground "doenst seem like a treating person to me " robin said teasing my sister.. this made me clench my fist "you wanna come closer and want to test that theorie?" I said robbin grinned at me and the fight started

~time skip~ *bats pov*
Uurrrgg they got away this time
Though she looked kinda familiar .... is my head messing with me?
....
The boys came running into my cave "father pleas tell Jason that he needs to shut up somethimes!" Damain asked me while Jason complained about something els when the alarm went off on screen it showed diamond star
Where is she going?...