Sebastian spent the next day by himself. His sister went out shopping with Cecile and he didn't want to join them. He was getting restless. He was having so much sex with them it was getting impossible not to think about it. He thought about going to the gym to help get his mind off it when the doorbell rang. He was surprised to see Danielle there. Nevertheless, he was happy to see her.

He let her in and after a moment asked her what she was doing there.

"I didn't plan on coming to visit", she said, "But then Kathryn told me about what's going on here with Cecile, so I had to come."

"Oh I didn't know she told you", he replied. Once again he was frustrated by his sister not being completely honest with him.

"So Cecile is the new me?", Danielle asked.

"Well she's visiting from England and then one thing led to another…and…"

"Sebastian it's OK, it's not like you guys have done anything wrong, it's just that I missed you guys and the time we spent together, you know…"

"Yeah we had a great time together", Sebastian replied. He remembered their time together very well. Kathryn used Danielle to corrupt him, but he was actually grateful for it. Danielle was very high up on his list and the threesomes he had with her and his sister were awesome.

"I really miss the time we spent together too", he added, "I'm glad you came."

"Are you here all by yourself?"

"Yup", he replied. He was getting hard. He slowly approached her, but he then hesitated. Was it possible he was so accustomed to having sex with Cecile and Kathryn that he just assumed Danielle would want to fuck as well? He has been with Danielle many times before but still, did she want him at that moment? However, his hesitation was over when Danielle began to kiss him. Soon they were all over each other, kissing and moaning. Sebastian was determined to pleasure her and before they were both completely naked, he began to pleasure her with his tongue and lips.

"Fuck yeah I missed this so much", Danielle moaned as he vigorously pleasured her. He was thrilled to hear her moan. He was very much familiar with her body and he know exactly what he had to do with his tongue. He could feel her body trembling against his tongue as an orgasm flowed through her body. Soon after she climaxed, he got on top of her. It was a huge relief to feel his cock inside her body. After several long hours, he was finally fucking again. Her familiar smell and soft skin made him feel very relaxed. They smiled at each other as they fucked.

"I missed you", Sebastian panted as he gazed into her eyes.

"I can tell", she replied as she tightened her grip on his butt cheeks.

He loved her body. Every part of it. He was familiar with every curve and her lips and tongue tasted very sweet.

"Oh God Danielle Danielle", he moaned.

"Fuck I'm gonna cum again", she replied. He was thrilled and he shared a powerful orgasm with her. His was very relieved and calm. They cuddled for a while on the couch, laughing and kissing. After a while Danielle said: "I had a long trip, I'm gonna take a shower."

"Oh sure", he said, "Go ahead."

"You wanna join me?"

"I…well…", he hesitated. He was exhausted, but yet he couldn't turn down Danielle.

"Sebastian, I can see how hard you are, c'mon."

There was no point in fighting it. He followed her into the bathroom and fucked her again in the shower. Afterwards he went to his room to take a nap as Danielle unpacked.

It was evening when he woke up. He heard talking and laughing coming from downstairs. Kathryn was there with Cecile and Danielle.

"Well, well, sleeping beauty just woke up", Kathryn said.

"Ha ha", he replied.

"Danielle told me you two have, well, gotten reacquainted."

"Yeah something like that", he said and they all giggled. He joined them as they talked and had a light meal. They were sharing experiences from college. He wasn't really paying much attention. It was kind of weird being there with three girls he was fucking. He was thrilled to learn Danielle would be staying for a couple of weeks. They were cleaning up when Cecile told him: "Well Sebastian, since Danielle just got here Kathryn and I agreed she will spend the night with you."

"Huh?", he replied.

"Yeah it's OK, really. Danielle has been saying the boys in her college are nothing much to talk about, so…she gets you for the night."

"Ah...OK sure", he replied and they all giggled.

Kathryn and Sebastian stayed in the kitchen afterwards to clean up.

"Hey sis…are you Ok with Danielle here and you know…"

"Oh please, brother", she replied, "If I'm OK with you fucking some girl down the hall? Like that has never happened before. It's OK, I am not jealous. I'm worried about you though."

"How come?"

"Because you're not doing anything with yourself all summer. You are preoccupied with thinking about sex all the time."

"I'm doing other things, sis."

"Like what? When was the last time you went out with some friends? Read a book? Went to a movie?"

"Well Cecile is here and…."

"So you're always here in case one of us wants to fuck you?"

"Well…ahhh…"

"How many times did you have sex with Danielle this afternoon?"

"Twice."

"And how many times did you have sex yesterday?"

"Once in the morning with Cecile when you burst into my room….and again in the afternoon."

"And the day before?"

"We had a threesome with Cecile, so…three times."

"And the day before that?"

"We had a scheduled session, sis."

"You see where I'm going with this? You have a problem. I know you brother, the more sex you have the more you crave it. You're addicted. You're having way too much sex. You need to set some rules, like the rules we have."

"I don't think there's a need for that", he replied.

"Yes there is. Look, there were many night when I was lying in bed, craving you, knowing I can have you, but I knew I had to be careful with you. You're so hot and you fuck so good and you're always there. But I knew things could get out of hand. So there were times I kept my hands off you. For your benefit, for our benefit."

Sebastian had never been so flattered in his life. Obviously he knew his sister enjoyed having sex with him, but still, she never actually said it to him like that. He wasn't sure what to say."

"Look brother", she said, "I know that sex is important to you. I really get it. But I love you and I don't wanna see you wasting away, OK?"

He was silent for a moment until he said: "OK".

That night he was lying in bed in his room, thinking about what Kathryn said. He heard a knock on the door and he knew it was Danielle, who came to spend the night with him.

He was surprised to see that both Danielle and Cecile were there.

Cecile noticed his bewildered look and said: "Look Sebastian, I heard a lot about the time you spent together with Cecile and I really wanted to be… a part of that. I wanna see the two of you fuck."

"Ahh, well…", Sebastian wasn't quite sure what to say.

"I'll help you get started", Cecile said and started to make out with Danielle. They began to take each other's cloths off as Sebastian look on mesmerized.

"Hey Sebastian", Cecile said, "Why don't you take off your cloth and lie down on your back so Danielle can fuck you?"

Once again he was taken aback by Cecile. She was so assertive and brazen. He quickly complied. As Danielle began to fuck him, Cecile got down on her knees next to the bed and kissed him. It was awesome. Danielle was fucking him hard as Cecile's tongue was swirling in his mouth. Danielle had both of her hands pushing against his chest and Cecile had one hand on his abs. Each time Danielle thrusted her body against his, he was overcome by an extreme pleasure. He felt he could go on forever.

"I wanna see you two in doggie style", Cecile whispered. They complied quickly as Danielle got up and positioned herself on her fours near the edge of the bed. He started fucking Danielle again as Cecile watched. She was mesmerized.

"Yeah Just like that", Cecile said as she looked on. He looked at Cecile and they smiled at each other as Danielle was panting. Slowly, Cecile began to approach them, until she was on her knees next to Sebastian on the bed. When she touched him he got even harder and thrusted his cock harder into Danielle's body. She gently grabbed him from behind and kissed his neck.

"You're body looks fucking amazing when you're fucking", Cecile whispered in his ear and he was overcome by ecstasy. Cecile kissed him again, aggressively pushing her tongue into his mouth. Fucking Danielle while kissing Cecile and feeling her rub against his body was thrilling. He sensed Danielle was about to cum as her body tremored. Cecile suddenly stopped kissing him and gazed into his eyes and said: "Fuck I can't wait till the next time you fuck me."

He couldn't hold it any longer and as soon as Danielle climaxed, he allowed himself to cum. The three of them cuddled together on the bed afterwards.

"That was amazing", Cecile said, "The two of you are like so in sync with each other, it was awesome!"

"Yeah", Danielle said, "We go back a long time."

"You're so hot Danielle, no wonder Sebastian can't keep his hands off you."

"From what I hear Sebastian has been pretty busy with you, Cecile. It's easy to see why."

"Oh thank you, that is so kind of you to say, Danielle, such a compliment from a hot girl like you."

"Well Kathryn and Sebastian have very high standards", Danielle replied.

"Yeah they do", Cecile said as she stroked Danielle's hair, "God you're beautiful!". Cecile and Danielle started to kiss and make out. Sebastian soon became hard again. At that moment he realized his sister was right. However, he was encouraged by two gorgeous girls to keep going and he couldn't resist. When he woke up the next, day they were both gone. When he headed downstairs towards the kitchen, only Kathryn was there. She was already having lunch. She gave him a stern look as he averted his eyes.