Over the next few days, the reality of what had happened with her sisters sunk in. Karen was embarrassed by what she had done. Girls weren't supposed to let people see that part of them. Even when she went to the doctor, he never looked there. Once she had to take everything off except for her panties at the doctor's. He had checked every part of her but even he didn't look between her legs. The closest he had come was to pull the front of her panties almost to her slit to check her tummy but "that" part was still covered. Still, what her sisters had done to her had felt good...

Karen didn't understand why something that shouldn't have been done had felt so nice. For eleven years, that part of her body had just been there. What had her sisters done to make it feel that way? Karen wanted to explore herself to see if she could find "the spot" but if her sisters caught her, she thought she'd die. She had attempted to touch herself in the bathtub but was almost caught when her mother had walked in. For now, she'd just have to wonder.

When the weekend came, Karen's luck changed. Her sisters were going to a sleep over party. Karen had the room to herself. That night she went to bed a little earlier than normal. For the first half hour or so, Karen just lay there. She didn't want to do anything in case her mother looked in to check her as she sometimes did.

As the time passed, Karen became more relaxed yet anxious. Sensing her mother wasn't going to come in, Karen pulled her nightgown up and slipped her hand into her panties. Even though she was alone, the action made her blush. She knew she wasn't supposed to touch herself but no one was there and no one would know.

At first, she just cupped her bald pussy. It felt like it always did. She could feel her hand on her pussy but it didn't make any special sparks like it did when her sisters touched her. She then remembered that her sisters had spread her open. Karen opened her legs to give herself room to spread her pussy lips but couldn't really do it. When her legs opened, they pulled her panties against her slit and she couldn't move her hand too well. The panties would have to go.

Karen shyly looked around the dark room. She knew she was alone but checked anyway. Once satisfied, she shoved her panties down and lifted her feet out of them. She knew she'd need them later so she shoved the garment under her pillow. She could now open her legs and have room to work.

Karen brought both hands to her crotch. Each hand gently grabbed a pussy lip and she pulled them apart. She lay like that for a while. It was kind of exciting to do something that naughty but the feelings she had felt before were absent. Karen thought for a moment. Maybe it was something inside her because her sister had put her finger in there. Shifting around, Karen opened herself with only one hand. Tentatively she touched the inside part of her slit with the other. It was wet and sticky. She didn't remember her pussy ever feeling like that before. Maybe what she was doing was right.

Slowly she pushed her finger in some. It felt strange. She could feel the warm wetness inside her. It felt tight but her finger slipped right in. She stopped pushing and let her finger rest inside her for a moment. She wasn't sure how far her sister's finger had gone but Karen was a little nervous about breaking something that might be in there.

Karen was beginning to feel a little anxious. She wanted to experience the same pleasures as she had when her sisters examined her. She thought she was doing the same things they did but something wasn't working. Gaining courage, Karen pushed her finger deeper. It was warm and gooey but there was still no magic like before. She moved her finger and felt it moving inside her. It felt the same as her sister's but there was no tingling.

After spending many minutes moving her finger around, Karen's hand began to tire. She nonchalantly let it rest on her pelvic bone. At first she just rested it but then decided to try moving her finger again. This time she felt a little jolt. What surprised her was it came from outside her canal instead of from within it. Karen pulled her finger up and out at the same time. As she did, she could feel the tingling. She had found the spot.

Tentatively Karen felt around the area where the jolts were coming from. There seemed to be a little bump there she had never noticed before. Every time her finger moved near it, it made a jolt. Karen gently pushed on the little knob. It made her want to lift off the mattress while at the same time causing a jolt that went through her entire body.

 Karen quickly snapped her finger away. Was that the "problem" her sisters had been looking for? The thought frightened her. She then remembered the jolts she was feeling were the same jolts she had felt when her sisters had examined her. They had told her she was all right so the knob must be fine. Karen wondered how long it had been there. She had never felt it before. It must have just grown. If it had always been there she would have found it long ago. She thought it strange no one had told her about it. She had been told she would grow tits, she would grow hair around her slit, but nobody had told her a knob would grow in her slit.

She slid her hand back down. As gently as she could, she let her finger find the bump again. It made her jump when she touched it. Her ass again pushed up from the mattress. The jolts felt nice but it was too much when she touched the knob. Karen experimented for a while with the little knob.

She finally discovered that if she just almost touched it, she would get the tingling without her body acting like it wanted to get away from her finger. Something else was happening too. Her nipples were getting stiff and poking out. Karen brought her free hand to one of her breasts. She quickly realized if she stroked and pinched her nipples gently, they too would tingle. The two places tingling at the same time really felt nice.

Karen was starting to get warm. If she didn't know better, she would have sworn someone had turned up the heat. Foregoing a few jolts, she pulled her nightgown over her head and dropped it beside her on the bed. Her hands quickly returned to her body to make more jolts. One hand was buried in her crotch and the other was going from one nipple to the other. Karen wished she had another hand. One hand in her pussy had been great. Adding the other to a stiff nipple had even been better. She could only wonder what it would feel like to have her pussy and both nipples played with at the same time.

Karen's manipulations were having their desired effect. Her body was now squirming around the bed uncontrollably. The hand at her pussy was getting wet. The temperature in the room seemed to be climbing. Without taking her pleasure producing hands away from her body, Karen kicked the blankets away from her. Even though nude and now uncovered, she couldn't cool off. Beads of sweat trickled down her forehead.

Suddenly it happened. That tidal wave called orgasm shook her entire body. Karen had to bite her lip to keep from crying out. She jammed her finger into her pussy like she was afraid the climax would leak from her hole. Her ass was bouncing off the bed. She was seeing stars. The juices were flowing out of her pussy and down her crack.

After what could have been seconds or hours, she couldn't tell which, Karen's body began to settle. She had done it. The earthshaking feeling her sisters had given her could be reproduced without them. Even though the orgasm had passed, Karen's body was still shuddering. She was still hot and now she was exhausted. Her whole body seemed numb. The fact she was still nude and uncovered seemed to escape her. Quickly Karen fell into a deep sleep.

The next morning Karen was woken up by voices. She was still groggy and couldn't concentrate on the words but she knew it was her sisters. Her mind did grasp the words when Ashley blurted, "Have fun last night little sister?"

"Huh?" Karen muttered as her eyes opened. As she rolled over on her back, she realized she was still naked. Blushing profusely, she grabbed the sheet and pulled in up to her neck to cover herself.

"I think little Karen has discovered how much fun she can have with her fingers," Lori teased.

"What are you talking about?" Karen tried to question as innocently as she could. Her red face gave her away.

"Looks like she's not talking," Ashley mused. "Let's get out of here, Lori. Karen probably wants to finger herself anyway." Both girls laughed but did leave the room.

Karen was totally embarrassed. How had her sister's known what she had done. Did she somehow look different? Karen jumped out of bed, grabbed her robe, and ran to the bathroom. She dropped the robe on the floor and looked at herself in the mirror. Everything looked the same to her. Even so, somehow her sisters had known. Karen vowed she'd never do it again.