Part 2
As told by Lisa.
I had secretly planned the idea of Nikki's birthday present for a long time, I needed to make sure that I was 100% happy with what I was going to propose to my husband Paul and my sister Nikki.
Paul worked hard in the construction industry and I worked from home in accountancy.
We were very well off financially and had a lovely large house, Nikki was spending a lot of her time with us and she has her own bedroom, Paul and I both enjoyed Nikki staying with us.
Nikki had been confiding in me a lot recently about how lonely she is, she had been voluntarily celibate for many years despite being the most beautiful woman on earth in my opinion, but she was saying that she felt horny all the time and was ready to dip her toes back into the dating game.
She had raised her daughter Bethany virtually on her own while holding down a job as manageress in a well known department store.
Paul and I loved to help look after Beth whenever possible, we tried to have a baby of our own early in our marriage without success, we both got tested and discovered that Paul's sperm count was so low that he wasn't able to father a baby, but now that Beth was an adult and she had gone away to University Nikki felt free to look for love once again.
Knowing Nikki's troubled relationships of her past I was worried where it would lead so I was trying to find a good man for her. I was having a lot of trouble finding the perfect man because I was already married to him and he was mine.
Paul is the most giving and unselfish lover a woman could ever wish for, he is kind caring and very loving.
Nikki and Paul had always got on well, there was a definite chemistry between them and they flirted with each other regularly. Nikki would tell me how lucky I am to be married to Paul, this was probably because I spoke endlessly with Nikki about our sex life. There are no secrets between sisters.
I love and adore my big sister Nikki and would do anything to make her happy, then it hit me like a sledgehammer, why not give Paul to her as her fiftieth birthday present, initially I thought they could spend a night together in a local hotel, but the more I thought about it the bigger the present grew.
I will never forget when I started dating Paul I was really nervous as I had never kissed anyone, I spoke to Nikki about it and without hesitation she taught me how to kiss. It seemed so normal to us at the time.
Once I had weighed up all the pros and cons I decided the time was right.
I thought that it would be best if I spoke to Nikki about it first to find out her feelings on my plan, telling her that for the duration of the holiday they had my total consent to do anything that they wanted to do and they should treat their time together like a honeymoon.
To my astonishment Nikki didn't hesitate, "oh my god Lisa, if you are serious and Paul is up for it then yes, yes, yes I love the idea."
"I haven't told Paul yet as I wanted you to be comfortable with the idea first, but I am sure he will say yes."
I booked the holiday for just the two of them but didn't tell Paul the truth that I would not be going with them until a couple of weeks before the holiday was due to start, I told him that the three of us were going and Nikki would be in a separate room from us.
When I told Paul the truth he was nervous to show his excitement in front of me but I know him well, he was very much up for it, I went on to explain everything to him including that I was happy for Nikki and him to have as much sex as they wanted.
"Wow, you are the best wife in the world to think up such an amazing idea."
"You treat Nikki right and look after her, especially in the bedroom."
The day arrived for Paul and Nikki to leave for the holiday to Tenerife, I must admit that I felt a little bit jealous, not because I knew my sister and my husband would be having a sexual relationship, it was because I would be staying at home working hard.
During the time they were away my mind would wander and I would think about what they were up to, it would turn me on and I would frequently masturbate as I imagined Paul licking Nikki's pussy and fucking her.
I decided not to contact either of them while they were away so that they could enjoy their holiday and each other without thinking about me.
The first time I heard anything from them was a text message from Paul on the day they were coming home, he said that their plane had landed back home in the U.K and they were waiting for their luggage. I knew they would be home in a couple of hours and waited nervously hoping everything went smoothly for them.
Finally the taxi arrived at 5.30p.m. and I rushed outside to greet them, I first hugged Paul and then I hugged Nikki, neither of them said a word but they were both smiling.
"It's good to see you both, I hope you had a good holiday," I said.
"Yes darling it was very nice." Replied Paul.
"It was the best birthday present ever sis, thank you for arranging it."
We went into the house and while they went to unpack their cases I made us all a nice hot drink.
We all met up in the dining room and sat at the table with our drinks, despite them both telling me that they had enjoyed their time away together I sensed something wasn't right, it was very quiet between Paul and Nikki and my initial thought was that things had gone badly as they seemed a bit distant from each other. I was desperate to find out why they were so quiet.
We ordered a takeaway for dinner to be delivered, while we were waiting for the delivery Nikki went upstairs to have a shower.
"How did things go Paul, was it everything you imagined?" I asked
"It was everything and more."
"Did you have a lot of sex?"
"Yes, we did."
Paul's answers were very short, he is usually very chatty with me, I needed to get to the bottom of this.
"Okay, let's stop with this strange attitude, has something bad happened between the two of you?"
"Please can we wait until Nikki comes down because we all need to talk about something."
I felt sick in my stomach, my eyes were full of tears and I felt as if I was about to lose my husband and my sister. I couldn't bear to lose either of them.
