Color - In the Tub

Story by Sophiie93

Most assume that sharing my body with my sister is easy because we were born this way. In fact, most of our life was easy until some years ago when it took a sudden turn and everything got very complicated.

My sister Stephanie and I were born as mutant conjoined twins, with four arms, six breasts, and two vaginas. Our heads are sharing the same set of shoulders, nothing that has not been seen before in Port Solei.

Although our personalities are very different, our childhood was quite fun and normal like most of the mutants in the city. We are healthy, made good friends and even had the luxury of being graduates of the famous Accessland Highschool.

The problem began a year after we graduated, without warning our body began to mutate. Our hips extended backwards, forming a new hip and an extra pair of legs in what is commonly known as a short-humantaur. However, in our back groin, instead of the vaginas that we expected to find we have two inhuman length penises.

We immediately headed to the hospital to do all the necessary check-ups and discovered that our vaginas had become conveniently deeper and even though the physical changes occurred explosively it was actually a long process that had started in our brains previously. Which we had already noticed because of the ease we had when using our new legs to get to the hospital.

I have a fairly calm and laid-back personality, compared to Stephanie, who is more impulsive and outgoing. However, the passage of time showed me that the change on a mental level affected my sister more than me. After our mutation, she had become an absolute nympho! Every time I was not paying attention she would move one or two hands towards our penises to stroke them.

Is not as autopleasure is a bad thing since we both became sexually active in our teens so it was something that we are used to. However, Stephanie had become completely addicted to the new feeling of self-insertion, reaching a point of doing it several times a day.

One night we were relaxing in bed. I watched TV while Stephanie looked at her phone. I immediately realized what kind of places Stephanie was visiting, as I began to feel a tingling in our genitals.

"Again Stephanie? We did it an hour ago…” I said, sighing and somewhat disturbed.

“Oh come on Misa! A whole hour has passed, just one more time!" She responded and turned to me with a mischievous smile as our big penises rose between our legs. I stared at her while she looked at me with puppy dog

eyes "Please, after this we can take a bath in the tub and relax before we sleep!" she said begging me while one of our hands was already caressing one of our penises.

"Well, it's not like we can sleep with these huge erections anyway right?" I said laughing, with hormones already running through our blood.

Stephanie smiled, holding both penises with two of our hands, stroking them subtly as her mouth ran up kissing my neck and reaching behind my ear, teasing me. I was just looking at our six breasts, our first row of three resting on top of the lower row. I moved our remaining two hands to fondle them, enjoying the sensation of squeezing our middle breasts with the outer breasts.

“We are lucky that our penises are so flexible, even when they are this hard…” Stephanie whispered in my ear as she guided the penises towards the lips of our vaginas. Slowly both penises pushed our vaginas lips apart until every inch was deep inside. All four of our legs immediately shook as the surge of pleasure ran through our entire body. Although I get tired for doing it so many times per day this feeling is without a doubt unmatched and never bores me.

I closed my eyes and focused on the sensations of my body, Stephanie took control of all four hands while she kept whispering in my ear "Let me do the work, just relax and enjoy..." at the same time our back hip began to move, intensifying the insertion . In my mind, I could separate the sensation of both pairs of genitals perfectly. It was undoubtedly intoxicating, a constant struggle in my mind to stretch the moment and not come right on the spot.

However, I felt all four genitals synced in a quadruple climax that came in waves of constant pleasure as our penises ejaculated inside of us. Stephanie took my face and turned it towards hers, catching my mouth with her lips. We both closed our eyes and enjoyed what seemed like an eternity of climax.

Seconds later, we opened our eyes stopping our kiss. "You made us come really fast!" Stephanie told me with indignation. I opened my mouth in surprise “Excuse me?!! You were the one who could not control our ejaculation… I was delaying it!"

Stephanie stared at me pouting and then started laughing, "Sorry, it just feels too good..." she said. I replied rolling my eyes up, disappointed "Well, I cannot deny that... are you happy now? Can we go take the bath?" I asked her while our hands were still playing with our breasts. Stephanie nodded and after a few minutes of recovering our strength, we headed to the bathroom, filling the tub with water and foam and preparing everything for a nice relaxing bath.

Slowly we got inside the tub. I laid my head against the edge and closed my eyes, relaxing my body completely. "I think I should be more flexible with poor Stephanie, I don't blame her for being addicted to that feeling, luckily now we can sleep in peace" I thought, without realizing what was happening in our body at that moment. Sharing my body with Stephanie is certainly not easy.