I originally wrote and published this story under a different pen name and title. All characters portrayed in any form of sexual activity are 18 years of age or older and fictional.
My sister Beth's aspiration to get a tattoo started when Bob and I returned from New Orleans with tattoos on our shoulders. Beth thought they were cool and wanted to have a tattoo of her own near her ankle, but our parents disapproved, stating that only indecent girls would have tattoos.
Besides being my best friend since the 7th grade, Bob was Beth's boyfriend. They met at our house years ago and instantly hit it off and later started dating, which became a serious affair. After High school, I started attending the nearby community college since I was keen on becoming an art teacher one day, and Bob went on to work for his father, who had a home remodeling business. Beth was two years junior to me. She had just graduated from high school and waited to attend college in the fall semester.
Beth and I got along well, and our relationship improved when she started dating Bob to the point that I didn't even mind double-dating with them. When I was the driver, and Beth was in the backseat with Bob, I often knew what went on there, but I didn't care. I guess it was hard not to understand. Likewise, they knew what I did in the backseat with my dates. Whenever Bob and Beth had disagreements, Beth always came to me asking to interfere or for counsel, so we pretty much knew about each other's personal lives.
When Beth thought she could have a tattoo that our parents wouldn't see, she went to a tattoo artist, came home with a few designs she liked, and asked me if I could enhance a few of them for her. I casually agreed but never spent much thought drawing the butterfly with a heart in the center of each wing. After she bugged me several times, I made a few designs using my computer program and gave her a few printouts since she wanted to get a tattoo before Bob's next birthday to surprise him.
While she was extremely happy with my designs, she wanted to see how her favorite design would look on her skin, using several different colors of her choice. One summer morning, when I woke up to the smell of bacon and eggs, I had no idea what Beth had in her mind till she asked if I would draw her favorite butterfly below her collarbone on the back of her shoulder. I didn't have the heart to say "No!" to Beth. So, I agreed, since I didn't have anything better to do either that morning, and therefore invited her to my room for the task.
"I don't want it to be any bigger than this, ok?" Beth said, giving me a folded piece of paper with a design. I grabbed a few fine-point erasable ink pens in three primary colors and prepared to draw while she rested face down in my bed and lowered her blouse below the shoulder.
It didn't take me long to realize that drawing on skin was much different than drawing on a flat piece of paper on a flat desk. The straight line would look uneven, so I decided to lie beside her in bed for better leverage. I stretch her skin between my left thumb and the index finger to resume, which yields better luck. Then, I also had to deal with the tickle factor, as Beth got jumpy when I touched certain areas, causing me many retries to draw on a little patch of her skin. Once I finished the outline, I asked Beth if she realized that our parents could see the tattoo if she wore a low-cut top.
"Good question... They will see it, won't they?" Then she thought for a moment and asked if I had any recommendations, and I kiddingly said, "Why don't you get a tattoo on your buns, so only Bob can see it?" and went on to work on her skin. Seconds later, she surprised me by asking me to draw on her rear cheeks.
"Well, are you sure? Which side do you want me to do?" I asked, not knowing if she was kidding or not, and her answer was, "Hmm... Let's see how it turns out. You can do either side; it doesn't matter right now."
I became a bit nervous about having to draw on her ass cheeks, let alone see it out in the open. I must also admit that I also felt a strange excitement, but I didn't know why. I haven't seen Beth without a piece of cloth covering her rear since we became teenagers, and the vision of seeing and drawing on them brought weird and wonderful feelings that I can't explain. But I knew I didn't want anyone, especially Bob, to know that I drew on Beth's naked ass, and therefore I looked for a confirmation from Beth.
"Are you sure you want me to do that?" I asked again, and she articulated her desire to go ahead.
"Hey, don't worry, I already showered this morning. So, my back is clean. On the other hand, are you nervous about touching my buns, are you? I am sure you have seen a pair of ass cheeks before, right? Once you have seen a pair, you have seen them all. Besides, when I go to a tattoo artist, I must let him touch me there, too, right?" Beth went on...
"Alright, Beth! Your ass is where I am going to draw on next. I guess you are right; once you've seen one, you have seen them all, so are you ready to drop your panties, Beth?" I teased her back, covering my nervousness, and said with a macho voice.
Then I lifted her dress and rolled down her panties enough for me to draw. She laughed and got on the bed. I knelt between her thighs as she brought them closer, gently touching me. I didn't think it would be exciting to see my little sister's naked butt, but having them exposed in front of my face brought feelings that I hadn't experienced before. However, I stayed calm, but my dick got a little excited about the outlook.
I found drawing on a well-rounded flesh was much more complex than the back of her shoulder. Therefore, I kept moving around to be in a comfortable position so that I could rest my elbows and still be able to draw. Beth stood still mostly, but each time I changed my position, she had to move to accommodate me. This awkwardness created a couple of problems. Each time she moved her butt, her panties would roll up again, getting me to roll them down while I tried to draw without offending Beth. I also began to enjoy touching her smooth, curvy ass, and my dick started to get aroused. Each touch brought more feelings and desires to see the rest of her ass and fondle, as I wished, down to her covered pussy.
"Hey, Beth, do you mind if I slightly lower your underpants? They are getting in the way?" I finally asked, sounding a bit aggravated. She nodded but didn't say anything. Without any further delay, I quickly lowered her undies down to her knees, but when that became a hindrance to her body movement, I had to remove them entirely after getting her consent. She did not protest because her garment was removed to allow her legs and butt to be relaxed without the resistance that panties caused.
I was having a good time playing with her butt, drawing, erasing more often than necessary, stretching her skin, and squeezing her butt softly. Of course, this was all necessary for the job I agreed to do. Then when I accidentally dropped the pen between her ass cheeks down to the bed, I made a quick attempt to catch it, but it wound up falling anyway. In my attempt to quickly grab the pen, I made unintentional contact with her pussy, and I felt the unmistakable feel of some saturation there. I sniffed the back of my hand to make sure it wasn't sweat, and I knew it wasn't. That gave me a sinister feeling. My little sister was getting wet and excited by my touch; WOW... I thought, and I was getting equally, if not more, enthusiastic and had a hard-on to prove it.
Therefore, the next time when I wanted to erase a line, I became a bit daring and used my tongue to wet along the ink line, which made her jerk her ass, and then I proceeded to use my palms to erase.
"That tickles..." Beth exclaimed. Making the most out of the opportunity, I squeezed her ass cheeks and licked along an ink line since she was pinned to the bed and couldn't make much of a fuss about it but laugh hysterically.
"Are you done yet? I don't want to be tickled to death, you know?" she asked, regaining her poise. I was almost done at that point with the design, but I went on to play more by drawing slowly across her thighs, her ass checks, while keeping my face flat on her other ass-cheek, causing Beth to raise her ass and make contact with my nose.
When she thought I had crossed the line, she threatened to leave by saying, "That's enough. I had it!" but I was in no mood to stop the play. I knew she was hot and wet. My dick was trying to burst out of my pants. More than anything, it gave me pleasure just having her naked butt in front of me for me to play as I wished, and thus, I wanted to prolong it as long as possible.
"Ok, ok, I stopped. I was just playing Beth."
"Are you done yet? I want to see what you drew in a mirror."
"Before you do that, can I ask you a question?" I asked, hoping to extend the game.
"Sure!"
"If you don't want anyone to see the tattoo except for your significant other, why not draw it on your public? " I asked, then hoped she would agree and allow me to see her front now that I had seen her glorious ass and had a good time playing with it.
"You think so?" Beth asked, almost whispering.
"Well, since I am at it, I can draw, and then you can decide later, right?" I was getting more excited than ever before. I wanted to see her dripping pussy, up close and want to play with it, even if that meant jacking off like a madman afterward.
"And you are not tired?" Beth asked, trying to decide whether to go ahead with my idea; I guessed.
"My back is a little hurt, but I can rest on the headboard this time and draw."
As soon as Beth moved her body, I quickly jumped off the bed and got back in with my back resting on the headboard. I spread my legs and assisted her to place her hips between my open thighs with knees bent and feet near my waist. Beth must have seen my hard-on that was very visible along the left thigh but did not say anything. Instead, she sat with her eyes closed, head turned towards the wall.
"You are not shy, are you?" I spoke to break the ice and to comfort her.