A/N: Just thought I could do a one shot story of Ben and Heroines and villainess of all kinds of media.

Here we go.

Characters belong to their respected owners.

Chapter 1: Harleen Quinzel/Harley Quinn (DC Comics)

"Now, where am I?" Ben asked himself looking over a map of the city.

Benjamin Kirby Tennyson, welder of the Omnitrix and protector of the universe was looking over his map of the streets of Gotham City; he was now looking for billionaire playboy, Bruce Wayne, he and his grandfather were friends and he offered to let Ben stay for a month for his college studies. Ben was having trouble finding his way around the city.

"Man, this city is huge! I wonder if there's a Mr. Smoothies around here?" Ben yelled in frustration, then he saw a person warring a long trench coat and hat. Ben ran over to the person.

"Hey, excuse me!" Ben yelled as he came closer to shade person." Could you help me out?"

"What is it?" The person asked.

"I'm new here and I'm kind of lost," Ben asked embarrassed, "Do you know where Wayne Manor is?"

"Sure," The person said and pointed to the direction. "You just past it!"

"Wow, Thanks al-"Ben was now on the floor from being knocked out cold, Ben looked up to see the person he asked giggle hysterically and looked what that person had hit him with.

"A mallet? seriously?" Ben thought still trying to keep consciousness.

Suddenly everything went black.

(Unknown)

Ben was still out cold from the being hit on the head, suddenly he started to open his eyes slowly; everything was fuzzy, but he started to regain his vision and saw something that shocked him to the core. He look to see that he was in a warehouse, the place was covered with clowns and was giving a creepy vibe to the young hero.

'This is the reason I hate clowns!' Ben thought with a shudder, but then he heard foot steps coming closer to where he was, he saw who they where coming from.

It was a woman who looked about in her early 20s and was warring what looked like a jester outfit with a red/black color scheme that seemed to show off all her curves very well.

"I see ya finally a wake!" The woman said with a Brooklyn accent.

"What the heck!" Ben said as he noticed he was tide to a chair,"Who are you?"

"None of ya Bees wax, bub!" She yelled, "Mistah J knows that ya' know about bat-brain!"

But than Ben finally remembered who she was, Her name is Harleen Quinzel aka Harley Quinn, she was once a therapist, but was seduced by some guy named Joker and turned criminal; Ben looked at her and tried to play dumb.

"Huh?" Ben asked acting confused by what she was talking about, "I don't know what you're talking about…"

"HARLEY! WHAT'S TAKING SO LONG DAMN IT?" A voice yelled over the intercom, Harley looked up nervous, but also lovingly.

"Just a minute, Mistah J!" Harley said lovingly, Ben looked her confused and at the intercom.

"HURRY THE HELL UP!" Said the voice of the so-called, "Mistah J" who's probably the Joker, it was now gone.

"He sounds like a jerk!" Ben said not liking how that man was talking to her; Harley looked at Ben angrily.

"Shut up! Don't talk about my puddin' like that!" She said with fury, Ben admitted that she was cute when she was mad, but tried not show it.

"Why do you put up with that crap?" Ben asked upset by that man treating her like garbage. Harley looked down with a sadden expression on her face. "But I love him, he's my puddin'…"

"That doesn't sound like love to me…" Ben said with a scowl, "He's only using you and he could kill you if he had the chance."

Then suddenly she pulled a gun up to his face "SHUT UP!"

Ben closed his eyes thinking the worst was coming, but nothing happened; Ben opened his eyes to see the young woman crying uncontrollably.

'Aw man…' Ben thought sad by the poor woman's crying.

"It's true…" Harley said finally facing reality, Ben was surprised by this.

"It is?" Ben asked confused by what she just said, "I-I mean…Yeah it is!"

"What's your name?" She asked.

"Ben, Ben Tennyson! Huh!" Ben introduced himself, but was surprised to receive a kiss by the strange woman, as her lips came away from the now blushing Ben, she grinned.

"Harley Quinn, nice to meet yah! Mistah T!" She introduced playfully, She then disappeared in a cloud of knock out gas. Ben finally slipped out of the ropes that were tied around him and reached and activated the Omnitrix; in a flash of green light he transformed into a moth-man like being.

"Big Chill!" With that he phased through the walls of the warehouse.

(Wayne mansion)

Ben was now resting on a bed; he then finally woke up to see he was in a fancy room. Then an elderly man walked in. his name was Alfred Pennyworth.

"I see you're a wake, Master Benjamin." Alfred said as he had a blow of soup.

"W-What happened?" Ben asked rubbing his head.

"Master Bruce found you near a restaurant; you were unconscious when he found you." Alfred explained.

"I best be on my way, good night Master Benjamin." Alfred said as he left Ben's room.

"Good night…" Ben said, but then be found a piece of paper on his green jacket that on the side of his bed.

"What is this?" Ben said as he opened the piece of paper; Ben blushed when he read it.

"Call me XXX-XXXX

Love HQ"

A/N: Well that's it, I hope you all enjoyed it.

I'm up for suggestions if you have any!