10.

They actually managed to stay quiet that night and just sleep, and the next morning Olivia joined the children for breakfast for the first time. Kathy kept an eye on the twins but all the kids seemed to be okay with Olivia's presence, for now anyway. They had tried to explain to all of them that not everyone would understand these kinds of relationships, and that it would be wise not to discuss it with friends or teachers just yet. They could only hope that the children would be able to keep it to themselves for a while.

That evening, the three of them sat down at the dinner table to discuss the practical details of Olivia moving in. Kathy suggested getting a new bed, King size, and Olivia and Elliot agreed. They went online to pick a bed and chose a huge black iron-frame bed. Kathy would make all the arrangements for the delivery and she would choose the bedding, her being the prime caretaker in the family.

Olivia would arrange for most of her furniture to be put in storage soon so she could give notice that she was leaving the apartment, and Elliot would do most of the heavy lifting. When the subject of Olivia's official change of address came up, the partners exchanged a look of worry.

"What?" Kathy asked.

"Cragen," Olivia and Elliot said simultaneously.

Their boss would be informed of Olivia's new address and he would definitely recognize it.

"Can't you just tell him that we invited you to move in to save money, without going into details?" Kathy asked Olivia.

"I can try," Olivia answered, "but I'm not sure he'll buy it. He's been watching us for a while already."

Kathy smiled and put a hand on both partners' hands on the table.

"Well, that doesn't surprise me at all. The chemistry between the two of you is incredible."

She watched the partners when they looked at each other, a half smile on both faces, and sat back when she saw two pairs of eyes dip down to two pairs of lips. They were like two magnets, being drawn to each other whether they wanted to or not. Kathy bit her lip when they kissed and felt herself getting wet immediately. It reminded her that she needed to tell her lovers something.

Elliot and Olivia were losing themselves in the erotic kiss and were moaning. Kathy sighed and had to look away. They were such a hot couple to watch and she was in for a tough week. When the partners finally broke apart and looked at her, Kathy spoke up.

"Guys, I think you should know that I just got my period this morning so you're on your own for a while."

"Well, that was bound to happen," Elliot said, looking at Olivia. "How 'bout you?"

Olivia thought about it, apparently counting in her head, and looked at her then.

"I think I'm due in a couple of days too."

Elliot groaned and both women laughed out loud.

"I bet you thought you were all set with two women. Turns out their periods overlap," Olivia laughed.

"You poor baby," Kathy mocked and Elliot stuck out his tongue.

"Don't you worry handsome, I'm sure we will find ways to keep you happy," Olivia assured him, and Kathy felt a new rush of wetness between her legs. It seemed to happen whenever Olivia did or said something sexy. She was really totally in love with the brunette and was so happy that she was actually moving in with them.

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Remaining a passive bystander while Olivia was getting it on with Elliot was more difficult than she had imagined. Her bleeding was too intense the first few days to allow for any fondling down there without making a mess. So she just watched for now in her underwear and a t-shirt, squeezing her legs together and enjoying the sensual movements of Olivia's beautiful body.

They were all in bed, and Kathy was looking forward to the delivery of their new, bigger bed already. They were going to do some redecorating in the bedroom as well. She looked at her two lovers again. Olivia and Elliot were naked and Elliot had asked her if she wanted to try something new. Anal penetration. Olivia had very limited experience with it and was afraid it would hurt, so they had agreed to take small steps, starting with a small dildo. Kathy and Elliot had done it before and Kathy knew that it took some time to stretch things up before Elliot's dick would actually fit in there. She promised Olivia that once they managed that, it would be a whole new thrill to add to her list of sexual preferences.

Olivia had lots of sex toys, including small, smooth vibrators that would be perfect to use back there, and they had laid out a few on the bed. Kathy watched while Olivia sat on her elbows and knees and Elliot moved behind her. His cock was already hard and she admired his body. He was such a strong, muscular man and his package truly wouldn't look out of place in a porn movie. She had to admit that she was much more focused on Olivia's soft curves these days but Elliot was a very attractive man and his dominant strength could still turn her on - especially now that it was being directed at Olivia. She had a dominant nature too and Kathy could tell that she was trying very hard to accept that Elliot was in the lead now. She couldn't jump up and turn the tables while they were testing the limits of what she could tolerate anally this first time. Kathy moved next to Olivia, her back against the headboard of the bed, to encourage her.

"He'll be very gentle Liv, don't worry," she said softly, caressing Olivia's bare shoulder.

Elliot was leaning over Olivia from behind, kissing her back and caressing her breasts until Olivia was focused on the pleasure she was experiencing and not her apprehension about what Elliot was about to do. When he sat up again, she tensed up a little and Kathy leaned in to distract Olivia with a kiss. She groaned softly when Elliot put some lubricant on her and pushed the tip of the small, golden vibrator in slowly. He used his other hand to rub her clit and Olivia was trembling. When the vibrator went in about an inch, Elliot also pushed two fingers inside her cunt and Olivia moaned. Kathy caressed her shoulder and Olivia relaxed again.

Kathy bit her lip while she watched Elliot work on Olivia and she took in Olivia's responses to what he was doing. After a while, the vibrator was in completely and Elliot switched it on.

"Oh shit," Olivia panted.

"Okay?" Elliot asked softly and Olivia dropped her head down to her pillow.

"Yeah," she croaked. "That's ... that's ... good."

Elliot smiled and rubbed her clit again, moving the vibrator out an inch and back in. Olivia moaned again and Kathy had to squeeze her legs together again. Elliot fisted his cock and moved his tip to Olivia's sensitive folds. She moaned again, clutching her pillow with both hands. Kathy grabbed her own breasts and lay down on her side so she could see Olivia's face. Elliot pushed his cock into Olivia slowly and Olivia cried out then.

"Fuck!" she yelled, pushing her ass into Elliot.

"Is that good?" Elliot asked, caressing her back.

The vibrator was still on and inside her all the way, and his cock was also inside her.

"Hell yeah," Olivia croaked. "My God, this is more than good. Do me hard Elliot."

Kathy bit her lip and wondered if she would be able to hold it together if Olivia kept up the sexy talk. Olivia could talk dirty when she felt like it, and she was clearly enjoying the double penetration. Kathy heard Elliot whisper her name then and looked up at her husband. He was pointing at another vibrator from Olivia's collection. It was also smooth but a little thicker than the one he was using at the moment. She sat up quickly to hand it to him and they smiled at each other. Kathy moved closer to him and they kissed each other. She caressed his bare ass and dipped her hand between his ass cheeks to cup his balls. Elliot jolted forward and Olivia let out a grunt. He removed the smaller vibrator slowly then and asked Olivia,

"Do you trust me Liv?"

"I do," she answered immediately.

Kathy squirted a little more lubricant on Olivia's hole and rubbed it with her index finger. She wished again that she could participate and when Elliot handed her the second vibrator, she smiled at him. They both caressed Olivia's perfect ass while she pushed the bigger vibrator in a little.

"Oh yeah," Olivia sighed, and Kathy kissed her ass before moving away to let Elliot take over again.

He continued to be gentle, pushing his cock in and out slowly while inserting the bigger vibrator. He switched it on and Olivia cried out again. She was trembling and panting, staying still until the vibrator was inside her all the way.

"Ready Liv?" Elliot asked.

"Oh please," she moaned. "I'm gonna come without you if you don't move."

He laughed and Kathy smiled as well. She reached underneath Olivia and squeezed her breast when Elliot started to move. The vibrator would stay in place and Elliot would push into it automatically while thrusting into her. The sounds Olivia was making were the sexiest thing Kathy had ever heard and she couldn't help moaning along with the couple. Elliot's movements became focused and stronger and he was grunting and panting while he fucked his partner. She was clearly very much okay with the way she was being filled up in two places now and was going to go over the edge very soon. Her cries became louder and her swear words more frequent.

"Tell me you like it baby!" Elliot grunted.

"Oh yeah!" Olivia answered, meeting his thrusts eagerly. "This is so good. Fuck!"

She cried out when Elliot bottomed out, slamming into her hard and fast. He was becoming a little rough but Olivia just kept saying yes. She wanted it hard and rough. Kathy was squirming next to her and needed to see her come. Olivia's palms were against the headboard and she was biting down on her pillow that muffled her screams. Elliot's grunts became louder too and when Olivia gasped for air and then screamed again, Elliot came too. Their orgasms shocked their bodies and Kathy was in awe of their combined passion. They were both shaking with pleasure. Elliot continued moving inside Olivia with powerful strokes while their cries became softer. He took the vibrator out very gently and kissed Olivia's back before pulling his cock out as well. Olivia collapsed on her stomach and Elliot rolled to the side so Olivia was in between both Stablers again.

Kathy's body was still throbbing but she was happy to see Olivia and Elliot so spent and content. Olivia curled into Elliot's chest and they kissed languidly, moaning softly while their legs tangled. Kathy moved until she was spooning Olivia and Oliva turned her head to kiss her as well.

"You enjoyed it right?" Kathy whispered, and Olivia nodded.

"Yeah," she sighed.

Elliot was kissing her neck and was caressing her body, making up for the somewhat impersonal position they had just had sex in. Kathy took a few deep breaths to try and calm down her own body. It was just a few more days, she told herself. Just a few more days.

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