A/N: This is my attempt at a longer, meatier Rizzles fic. This prompt was messaged to me on here. Hopefully I do justice with the idea! I apologize if updates are slow. Doing this one completely solo as well as working on other fics. Please enjoy. Any thoughts/feedback is helpful!

Maura sat at the island in her kitchen stunned into silence. She blinked a few times, her mind seeming to fire too quickly for her to land on any one specific thought. Over the course of her life, she'd only ever experienced this less than a half dozen times. Most recently, half of those all seemed to fall during her college years.

She was sitting in her dorm room sipping her tea and reading through multiple text books when her pager went off. She looked curiously at the number as it wasn't one she was familiar with but reached for her purse and pulled out a quarter. She headed to the communal pay phone in the hall. Fortunately it was free and she deposited the money and dialed.

'Hello?' A curious but soft-spoken woman answered. The voice sounded eerily familiar.

'Yes, hello. I'm Maura Isles. Someone from this number paged me? I'm afraid I'm not familiar with this line.' She added for politeness incase she'd misdialed.

'Yes, um, hello. My name is Caitlin. Caitlin Doyle. I...um it's a really long story. And I think one I shouldn't tell on the phone. I assure you I'm not going to hurt you or anything. Could we maybe meet for coffee or something?'

Maura looked at her watch, still very confused by the cryptic nature of everything. 'Certainly. When and where?'

'Um, the Human Bean on Bleeker? I can be there in 20.' Quickly Maura plotted out the city in her head.

'Barring traffic delays, I will be there in 25. I will see you soon, Caitlin.' She hung up the phone and rushed back to her room. She grabbed her purse and keys and made haste toward her car. A thousand thoughts rang through her mind as she tried hard to keep focus on the road and her route. Due to a quick green on Delancey, she was just pulling up to the Human Bean at 28 minutes versus her planned 25. She felt rushed and frantic but tried to calm herself before walking in. It seemed silly to look around as she had no idea what this Caitlin looked like.

Everything seemed to fall into place harshly as her eyes fixed themselves on a woman who looked exactly like herself. Her mouth went slack and her eyes went wide.

Caitlin quickly made her way over to the shocked woman. "M-Maura, hi. I...uh yeah. There's no easy way to say this. I'm your...twin sister." She moved and pulled a chair out before it looked like Maura would fall. She collapsed into the seat, not taking her eyes off the woman for a second.

'I'm sure this is got to be shocking and confusing. I'm so sorry. Um...it's going to get more so, however. Can I get you a water? Or coffee? Something?'

Maura shook her head. 'N-no, no thank you.' She stammered. She was already less than stellar at social situations. However, this level of silence on her end was a new record for her.

The woman nodded, taking a seat across from her. "Alright. Um, well as I said, my name is Caitlin Doyle. My - er - our father, is Patrick Doyle. The south side mobster?' She said it as a question to see if Maura knew who the man was.

She went ghost white as she nodded. 'I-I see.'

'He has yet to tell me who our birth mother is. It seems she was very educated and on a good track when she became pregnant with us. When she gave birth, it was so draining she passed out. In the interim, Paddy had concocted a plan. I was sent to live with a distant cousin in California. My mother was never supposed to tell me but I was getting older and asking questions. I tracked Paddy down and confronted him. Then he...explained about you. His cousin - my mother Helen, could only afford to take in one of us. Paddy offered to send money for us but she refused. He thought it was safer anyway if he split us up so he said he found some art professor at BCU. He'd studied her family and just knew his other daughter would have an amazing life.'

Maura listened. It all seemed like the plot of some movie she'd never watch but sadly, it was the story of her life. At least, that part of her life. She kept trying to process everything she was hearing. 'So...I - we, have a mobster for a biological father and I have an identical twin sister?'

Caitlin nodded. 'I don't want or need anything from you, Maura. I...hoped maybe in time after the shock wore off we'd get to know one another? I have never been one to make friends easily. And I mean, the biological stuff, you aren't tied to me. I get that. Like you don't have to be my friend if you don't want to,' she was quick to add.

'I didn't say that. I...too am socially awkward at times. I spout random facts, especially when I'm nervous. Apparently I'm just too stunned to be nervous, which is unusual for me.'

"Are you sure you're attracted to a woman, Caitlin?" Maura's voice was not accusatory or disgusted but rather, truly asking. "I mean, sexuality is very fluid. It's normal and healthy to have stirrings. It's just, you have Jeff and the kids. I know you're not rushing into anything or even exploring...are you?"

"Maura, no," she shook her head. "I'm not acting on anything...yet. It's that 'yet' state that has me confused. I can't go into details about the woman but I know she is gay. She's incredibly attractive and fierce. She's like fire and ice," her sister gushed.

The instant she described this mystery woman, Maura's mind flashed on Jane. That would be the perfect way to describe Jane. Though she was certain her sister could not possibly be attracted to her best friend. Well, not that she'd blame her. Deep down Maura knew she was very attracted to Jane. She'd tried flirting and teasing throughout the years to no avail.

She took a deep breath and grabbed two mugs from the cupboard. She turned back, turning on the coffee press and placing one mug beneath it as it began brewing. "You can tell me more about her, you know? I'm not a gossip, Kate."

She smiled wistfully. "You only call me that when you're exasperated. And I can't say more because...it's not that I don't trust you. I just don't want things to get weird in my life right now."

"You mean stranger than suddenly having feelings for a woman?" She passed the finished coffee over to her sister as she put her own mug under the spout.

Caitlin wrinkled her nose. "How do you know it's sudden? I could have had feelings for women all the time without you knowing. Thank you, for the coffee." She added, remembering her manners.

"Kate, you know you would have told me. Since finding one another, we fell into a very sisterly state of closeness and bonding. We've both been very honest with one another."

She sipped her coffee, hearing what her sister was saying. 'I know. Which is why I can't tell you who because you have the hots for her too!' She blanched slightly but forced a smile. "Okay, you've got me there, Dr Know It All."

"I do not know 'it all' Caitlin. I just happen to know a deep and vast array of information garnered through years of reading and study." She gently corrected as she turned off the press and removed her mug.

Caitlin smiled. "I know, Maura. Which is why I always come to you. Aren't you supposed to uh, be meeting up with Jane?"

"Yes. At 11:30 for brunch at Joe's? I've never been but it was her turn to pick. At least she's picked something other than the Dirty Robber. It's not that I don't enjoy it, but it is nice to take in other venues."

Caitlin nodded. "True. Uh...would it be weird if I came along?"

Maura quirked up her eyebrow and thought over the question. "Why would it be 'weird'? I think you've been spending too much time with the kids. I don't think Jane would mind. I'll text her." She reached for her phone and her well-manicured fingers set to typing out the text.

She chuckled lightly at her sister's phrasing. It never ceased to amaze Caitlin that for as similar as they were in so many avenues, those in which they diverged, they were polar opposites. Maura was a walking Encyclopedia. 'Google-mouth' as Jane would call her, was very accurate. "Those kids by the by are wondering when Aunt Maura is going to see them again?" She queried as her sister set the phone down.

"I don't know. My work schedule can be erratic as you know. I am quite happy to," she picked up the phone to check her calendar app. As she did, the reply text shot back from Jane. "Oh! Jane says that's fine. My apologies. I seem to be free next Thursday? Perhaps I can stop by after school?"

Caitlin smiled. "Great! And you stopping by would be wonderful. I'll make dinner. Jefferson is going to be on a business trip Wednesday through Saturday. It would be great to have another adult to converse with."

Maura nodded happily. "Then it's a date. Speaking of, I should probably go get out of my yoga clothes and take a shower. I will be back momentarily." She left the kitchen and headed toward the living room and the stairs.

"Absolutely. I'll just sit here and play Angry Birds." She wiped out her own phone and brought up the Game Center app. 'Welcome Back, Caitlin!' the banner stated. Below was a notification. 'Det Rizzoli beat your high score on level 21! Beat her back!' A delicious jolt shot through her seeing the name and title. It was oddly stirring when Jane referred to herself in such a powerful way. Her mind flashed on the woman sauntering in, badge on hip and gruffly pressing her against the wall.

'You're under arrest, Caitlin Doyle.' The woman's voice almost a primal growl.

'Wh-what for?' she stuttered in surprise.

'Hindering an investigation! You're on my mind 24/7 to the point of fuckin' distraction.' With one swift motion the detective grabbed the cuffs off her belt and was slapping them around Caitlin's wrists. 'We are gonna take care of this once and for all.'

She moaned and felt herself grind against the wall, against Jane. She was beyond in need now. 'Mmm I am sorry, Detective! Please, do with me what you will. Give me the full extent of punishment,' her voice purred.

'You bet that sweet ass I will,' and with that came a firm swat that made Caitlin moan in pleasure. 'You like that, naughty girl?' Before she could answer, Jane was reaching between Caitlin and the wall and slipping her hand in the front if her pants. 'Mmm you like this a lot. You're already so wet,' she noted as she cupped Caitlin's sex.

'Mmm you're not the only one who's had someone on her mind, Detective,' she teased the title in her mouth. 'I think about you constantly and crave to feel every inch of you.'

Jane gave a low chuckle. 'Well we will see if you earn that.' She moved them over toward a couch, unlocking the cuffs for a moment. She made haste at ripping Kate's clothes off.

'Mmm fuck Jane you're so...powerful,' she arched back against the woman's actions.

'Just wait. You haven't seen anything yet.' She nipped Kate's earlobe before turning her around, bent over the arm of the couch and flicking the cuffs back on. The metal digging in was an oddly arousing sensation.

'Mmm do what you will, Jane. I'm all yours.'

'When I'm done with you, you're not going to remember a man has ever touched you.' She leaned, curling herself over the naked woman beneath her and bit her neck, sucking. 'I own you,' she moaned as one hand palmed a firm breast and another went between Caitlin's legs again and sunk two slender digits deep her hungry pussy.

'Oooh fucckk Jane, nothing, not any lover, has ever….fuckkkkk...' was all her brain could get out as she was being valiantly taken.

Maura stopped at the doorway seeing her sister flushed deep red and slightly panting. She could tell right off the woman was sexually aroused. "Kate? Caitlin? I...were you thinking of her?"

Her eyes quickly snapped on Maura and a flush of embarrassment washed over her. "I-I...was," she stammered. "I didn't mean to. She's...got an incredible hold on me. It's…" she bit her lip trying to land on the word.

"Like an addictive substance?" Maura gently asked.

Caitlin chuckled. "Only you could make it sound like that and still be adorable. Yes, very much like a drug. You look stunning, by the by." 'Thank god Maura's not going after Jane or I'd so have no chance...'

"Thank you. I have been wanting to wear my Kaye Hinton ensemble for some time though I know it's a tad risqué for work." The cream top clung around her breasts perfectly while the wrap skirt hugged her hips deliciously. And of course the top had a wicked dip for cleavage to dance out from.

"Uh yeah. If you bent over your tits would fall out," Caitlin quip.

"That is physiologically impossible as I have a very secure bra on," Maura countered.

Caitlin chuckled and shook her head. "It's a saying, Maura. I am going to use the restroom before we go if that's alright?"

She softly smiled and nodded as she grabbed their emptied mugs. "Certainly." Maura turned her attention to rinising then setting the mugs in the dishwasher. While it would be faster to hand wash the cups, it was far more sanitary to her to just wait until the washer was full and run it.

"Okay, all set," Caitlin smiled as she came out. Maura was just drying her hands with a cloth.

"Alright." She smiled as the phone on the sink next to her vibrated. "Ah. Slight change of plans. Jane is picking us up. She will be here in a few minutes."

Caitlin nodded and smiled before taking a seat in the front room. Maura followed sitting in her over-sized chair.

"You really can't or won't share any details on a woman who clearly has gotten under your flesh?"

She looked at Maura and chuckled. "The phrase is 'under your skin,' Maura. And I really can't. It's too complicated of a situation."

"Oh you know what I meant! And fine. I won't press you. I'm never one to-" before she could finish the sentence, the front door rang. "Odd. I don't know why Jane didn't use her key." She got up and went to the door. She checked the peephole first and on the other side was be very much one Jane Rizzoli. "Jane! Why didn't you use your key?" She asked as she opened the door.

She grinned and teased. "Sometimes it's nice to have a pretty woman open her door to you." She came in and saw Caitlin. She smiled warmly. "Hey Kate. How've ya been?"

She tried to stop herself but it was no use. Her eyes darted over the lanky detective taking in every detail. Jane's hair was in it's signature loose style. The tamed unruliness of the tresses fit her to a tee, Caitlin thought. She had on her short-sleeved Property of BPD Homicide tee on and rugged jeans with a hole in the knee. Unlike others who bought jeans with holes, anyone who knew Jane Rizzoli knew that hole was actually just an extension of how hard she played.

"I-I've been fine, thank you for asking Jane. Yourself?"

She shot a smile and nodded. "I've been good, thanks. You two ready to go?" She looked from one to the other.

Shamefully, to Jane, if anyone asked and she was like Maura and couldn't lie, she'd have to admit she'd had more than one fantasy of having the two in bed with her at the same time. They were identical even down to the peppering of freckles on their chest and cheeks when one got really close. Actually, the thoughts really started for Maura. But when she found out there was another woman just as gorgeous, she couldn't help herself.

Maura grabbed her purse and looked to Caitlin who nodded. "It seems we are ready, Jane."

Jane smiled and opened the front door gallantly for both women. "Ladies first," she smiled.

Her chipper demeanor was slightly surprising to all except Maura. As the pair went out, Maura questioned. "New sexual conquest, Jane?"

Jane blushed and turned on her heel. "Maura! I-" she blushed hard and Maura grinned.

"There is nothing to be ashamed of, Jane. Sexual gratification is incredibly necessary for stress relief and -" before she could finish, Caitlin cut her off.

"We get it, Maura. If Jane doesn't want to say more about her paramore, that is that." Maura locked the door and they all made their way to Jane's car.

"I wouldn't be that poetic about her, Kate. But thanks. It...was just a one-time thing."

Maura grinned as they all got in. "Ah, a one-night stained?"

Jane and Caitlin both chuckled. "Stand, Maura. The phrase is one night stand." She started up the car.

The medical examiner waved her hand. "You knew what I meant."

Jane shot a coy glance. "I always do."

Caitlin blushed in the backseat. "W-who was she, if I can ask."

Jane looked over her shoulder to Kate before they headed out. "Her name was Sarah. Cute redhead in town from Tennessee. We met at The Merch. She was pretty fun," she added before heading off.

"Well I am glad. You were getting quite tense and irritable, Jane. Sexual gratification is always a good release for those issues," Maura added.

"That was exactly what I thought. I was looking at this hottie and totally thought 'I need stress release.'"

Caitlin lightly chuckled but Maura looked slightly confused until it dawned on her. "Sarcasm?"

Jane smiled and nodded.

Maura pursed her lips slightly and her eyes narrowed. "Ha ha."

Jane gave a wink to her friend. "Come on, Maura. You know I don't like to talk about sexual things. I play stuff off."

"Which I have never understood. Female friends seem to have a very healthy bond discussing their sex lives."

Jane chuckled nervously. "Did you stumble on Sex And The City last night? I'm not Samantha when she went gay."

"No. You're more like Charlotte in disliking discussing sex," Maura pointed out.

"Maura," Jane groaned.

"Hey, is that the new statue the city commissioned?" Caitlin asked to distract the pair.

Maura looked and nodded. "Yes. We will have to take a closer look sometime. It's supposed to be from Madeline Rouche. My mother had shown me some of her works before. Very powerful and woman-focused."

"Great idea, Maura." Jane added as they arrived at Joe's. She found a spot up front and everyone piled out. Taking longer strides, she'd gotten to the door ahead of the sisters and opened it. "Ladies first," she smiled.

Maura nodded and stopped herself from correcting Jane. She could see in the woman's physical demeanor she was kidding.

Caitlin grinned and kept up the teasing banter. "Why thank you. Such an attractive gentleman."

It was far from a Michelin star restaurant but it seemed cozy. Jane found a booth and the sisters headed over.

"I know it's not fancy or French, but they do have French Fries! Or French Toast," Jane pointed out with a grin.

Maura gave her signature 'really?' look as Caitlin chuckled next to her.

At the look Jane's grin just got broader and then fell. "Sorry, Maura."

Maura smiled and nodded. "Thank you."

Each woman reached for a menu that was already on the table and began scanning through it.

"Anything you can recommend, Jane?" Caitlin asked.

Jane laid her menu down to look at the woman as she spoke. "I always say you can't go wrong with a burger," she grinned. "But as Maura is here I will probably have it with a salad instead of fries. The turkey club is good," she added.

Maura shook her head and gave a slight smile.

"Thanks for the tip," Caitlin grinned.

Finally a waitress came over and smiled. "Hello, I'm Amy, I'll be your server. What can I get anyone to drink?"

Jane smiled to Maura and Caitlin. "Ladies first."

Maura again shook her head and smiled. "I'll have an iced water with lemon, please."

Caitlin blushed at the compliment and smiled. Two sets of dimples were stairing at Jane. "I'll have a diet coke, please?"

Amy nodded and wrote the orders down.

"I'll have a coffee please, Amy. No cream."

"Certainly. Is anyone ready to order or do we need a moment?"

Jane looked to her companions. "I am ready but how about anyone else?"

Maura and Caitlin nodded in unison. Jane grinned to Amy. "It's kinda freaky when they do that at first, don't worry."

Maura shot a slight glance to Jane but then relaxed. "I'd like the chef salad, vinaigrette on the side."

Caitlin smiled. "I'll have the cheeseburger, medium, no lettuce, tomato or onion with fries."

Jane grinned. "Make that two, but a salad instead of fries for me please? Italian on the side?"

'I'd love a side of Italian,' Kate blushed as the thought surged through her mind.

"Really, Caitlin? Not one healthy thing in your meal," Maura chastised.

"I'm an adult, Maura. I'll eat a light dinner. Why not live a little and get crazy every now and then? Life is short. Right, Jane?"

Jane waved her hands. "Whoa. Don't drag me into the middle. Arguing sisters is never safe. Though for some odd reason a lot of guys would kill to watch you two catfight and rip each other's clothes off."

"What does that have to do with anything, Jane?" Maura questioned. "Male sexuality, or sexuality in general, wasn't the forefront of any topic."

"Got you two to stop arguing, didn't it?" She gave her signature 'get out of jail free' grin.

Maura smiled and nodded. "Touché, Detective."

Jane could not be held responsible for the state her panties were now in. No, that honor lay completely with one Dr Maura Isles and her tantalizing way of teasing Jane's professional title.