I woke up at 6:00 AM to pick up Kirthi from the railway station. Radha was sound asleep and I shook her and asked her to make some coffee and breakfast. Around 30 minutes later, I went to the railway station to pick up Kirthi. Kirthi is my sister who is 24 and 4 years younger than me. She is a petite and fair skinned beautiful girl who grew up with some traditional values. We shared almost everything. I have trusted her with some secrets since my childhood. But not the tales I was having with Ashwin and Pooja.
I reached the station and the train was 10 minutes late. My beautiful sister disembarked from coach A2. She was looking stunning and has put on some weight from when I saw her before. She is no longer the petite Keerthi I knew. She had a round nice ass and bigger boobs.
"Here Keerthi, this way." I yelled.
She dragged her trolley suitcase behind her and reached me. I took it from her and we started walking towards the auto stand.
"How was the journey?" I asked her.
"Very tiresome. Couldn't wait to reach home," she said.
"Okay let's go home. Radha is waiting for you." I replied.
We reached home around 1 hour later and she immediately crashed on the couch. Radha gave us some water and asked us to get ready as she prepared breakfast in the meanwhile. I showed the guest bedroom to Keerthi and went to my room to freshen up. We soon had breakfast and I went to the office. Radha took Keerthi to the institute.
Over the next few weeks my life was routine. Kirthi and I will go to our office and institute everyday. Radha stays at home as she is a housewife. Kirthi usually returns home by 3 PM and I will reach at 7 PM everyday. Kirthi is taking an MBA coaching at an institute which is just about 20 minutes from our home.
Quite recently I saw some change in both Kirthi and Radha, they are so close to each other and almost behave like a couple. I thought they were bonding well as best friends.
One Wednesday evening when I reached home, they were cooking a special meal for us. After we had dinner, Radha and I went for a small evening walk and Kirthi stayed back and made some calls to her friends. After we returned home, Radha changed into a night dress.
I was feeling horny. I looked around and Kirthi was in her room, so I hugged Radha while she was doing her hair. It has been about a week since I had sex with Radha. When Kirthi is around we don't get to have much sex as we were afraid of her hearing us. Our bedrooms are so close.
I held Radha from behind and reached for her pussy over her pyjamas. With my other hand I pressed onto her left boob over the shirt. Soon she turned around and kissed me on my lips. I grabbed her ass from inside the pyjamas. She wasn't wearing any underwear. It is a habit we both have. We don't wear anything inside while we are at home.
We went to bed and got to action soon. She took her shirt off and went topless. I sucked on her boobs and nipples. Later she pulled my pants and took my dick in her mouth. She went to town on my penis and I cummed soon. I returned the favour and made her orgasm. I ate that pussy like a hungry animal. Then I inserted my dick into her pussy and started slowly. I increased my pace and with my every thrust her breath intensified. We soon reached climax with me being first to hit. I rolled over and we cuddled each other. She turned her head to talk.
"Listen, I have something to say." she said.
"I love you too!," I said jokingly.
"No baba, listen. I understand why you and Ashwin were sexually involved. I can even understand your gay mentality," she said.
"Are you joking?" I asked, looking in her eyes.
My eyes were wide open with shock from her statement.
"What makes you say so? You never had a lesbian sex. Moreover I am not gay, I am a bisexual." I added.
"Well, I had a taste of it recently and it was amazing," she responded.
I was aroused and appalled at the same time. "No kidding," I said.
"No, not at all. I am sorry for not understanding!" she said.
"Well who is it? Do I know her?" I asked.
"I will tell you, but you have to promise not to overreact." she said.
"Okay, I won't. I promise. Now tell me who it is?" I said.
"KIRTHI." she said.
"Kirthi? My sister Kirthi?" I was shocked and my head was spinning.
I didn't expect that to happen. Since the last few weeks they grew closer. I thought they were bonding as best friends. Little did I know they bonded as a couple. Kirthi as I know is a cute little sister to me.
"Spare no detail. Explain everything to me. What happened?" I asked Radha curiously.
"Okay, so, last Monday she came back home early and we went shopping. I bought some lingerie for myself. I was excited to try it on. As soon as we came home, we both tried them on. I noticed how sexy Kirthi was. I couldn't resist and complimented her beauty." She said
My curiosity had no limits. "Then?" I asked her.
"Mostly because we were women, we had no problem seeing each other naked. So, she went first and removed her t-shirt. She had nice round boobs in her brown sports bra. She removed the bra and her 34d round firm boobs with dark black nipples opened to me. She looked beautiful. We went on and tried a few more bras and eventually retired to our chores."
"That's it?" I asked shamelessly.
"Wait there is more," she replied. "The next day she returned around 3:30 PM and took a bath. I was watching a horror movie. She came and sat next to me in her pink small shorts that barely covered her thighs and blue t-shirt. We were so involved and I did not even notice my hand was on her thigh as I have the habit of holding you while watching movies. About a few minutes later she placed her hand on my thigh and came close to me. I can hear her breath as it intensified. Later she had her head resting on my shoulder and we finished watching the movie. We just sat in silence. Later I stood and brought some tea and snacks."
"The very next day, I had a back ache and she volunteered to massage my back. I took off my kurta and I am topless with my boobs hanging free. I laid down on my bed face down. She applied some oil and started massaging my back. I can feel the warmth and I relaxed. Her soft hands on my bare back made me horny. She moved down to my legs and asked me if she could continue. I wanted to feel her touch. I told her to continue and she continued. She removed my leggings. I felt it was sexy. I wasn't wearing anything beneath and Kirthi commented on my firm ass. She massaged my legs and moved slowly upwards towards my pussy."
"She came up and massaged my ass cheeks. Next thing I know she kept her hands between my ass creek and massaged it. Her fingers kept touching my pussy. It was steamy. I turned over and looked into her eyes. There was a glow in her eyes that told me we were going to have sex today. She took some oil and massaged my boobs one by one. I put my hands on her boobs over her t-shirt. She continued massaging down towards my pussy. I lifted myself up and took off her t-shirt. She had a sports bra and I removed it too. Now her beautiful boobs are free. I laid back down and continued to press her boobs. They were soft and firm. She touched my pussy and I jolted to her soft touch. She massaged along the length of my outer labia and then inserted a finger in it. With her thumb she rubbed my clit and added another finger in my pussy. Within minutes of her pleasuring me, I reached an intense orgasm."
"Wow, I am hard again," I interrupted her.
"Why won't you be?" she responded and moved her hands to my dick. She started to beat my meat and continued her story.
"I stood up and hugged her, her warm naked body against mine was breathtaking. I kissed her sweet lips and held her left boob in one hand. It was my turn to pleasure her. I laid her beside me and went down on her pussy. I removed her shorts and panties. Her pussy had pubic hair trimmed to a good length. I inserted a finger in her pussy and sucked on her tiny clit. I went in and found a texture up her inner wall of pussy. She bounced up and down on my finger rub inside her pussy. And released sweet nectar onto my fingers. I licked and went to give her a kiss."
"Since then, we have had sex almost everyday except for weekends." she said finishing her story.
I was reaching climax and asked her to increase pace. She kept stroking my dick. I soon ejaculated all over her.
"I can't believe it. That was awesome," I said panting.
"You came all over me. Let me wash and come." she said, getting up.
"I can't believe you had sex with Kirthi." I said. I followed her to the bathroom to clean my dick.
"I know. I can't believe it either. It just happened." she replied.
"I know, that is what happened to me too." I said.
"I am sorry for what I did to you. I couldn't understand you." she said. I noticed a tear from her eye. I went and hugged her. We were still naked.
"It's okay. Now that you understand, I am happy." I consoled her.
She rested her head on my chest and said, "I am feeling guilty of not understanding my husband."
"There is nothing wrong with this. The world is changing towards a more positive mindset," I said. "Clear your mind and sleep, we will talk tomorrow."
We slept through the night. She hugged me from the side and rested her head on my shoulder. Next morning I woke up and found Radha in the kitchen. Kirthi was sitting on the sofa watching TV and having coffee. I went near Kirthi. That day Kirthi looked different to me. Until yesterday she was my sweet little innocent sister. Today she is almost a wife to my wife. I couldn't believe how much my sister grew up physically and metaphorically.
"Good morning!" I wished Kirthi, sitting beside her.
"Did she say anything last night?" asked Kirthi.
"Did you know?" I asked in shock.
