DISCLAIMER:- The following text is sexually explicit and contains depictions of sexual acts that have been classified by the surgeon general as potentially dangerous and unhealthy. You must be a broad minded adult to read the text, and you must not make this text available to minors or to any person who does not wish to view it. Unprotected sexual relations with unknown partners is hazardous and we urge the use of condoms and safe sex at all times.

Amy was feeling deliciously naughty, she had managed to “borrow” a dildo as they were touring the lab that morning before lunch and had taken it back to her room where she read the small pamphlet that was with it. The instructions said to charge it for six hours for full effect. Even though it already felt warm to the touch like it was fully charged she plugged it in behind her dresser and made sure that it was hidden and then joined the others for lunch. She couldn’t wait to get back to her room that evening and test it – she had never had the nerve to buy one and borrowing seemed too embarrassing to the young lady. Amy figured she would just return the dildo tomorrow and no one would notice it had been missing.

The dildo she had managed to borrow was about six inches long and medium thickness. It seemed to be made out very soft, supple rubber. It almost reminded her of a Slinky as if you pulled on it hard it would expand like an accordion and then retract when you let it go. The bottom of it ended in a round ball about 1” and then about another half-inch or so of shaft; it had a twist connector on the bottom that locked onto a metal plate slightly smaller than a tea saucer, but cut out on each edge so it could fit between thighs without discomfort. There was a switch at the very bottom of the dildo. Even to her unfamiliar eyes it was obvious that you flipped the switch, locked the collar onto the end of the dildo and then sat on it or held onto the saucer as you used it.

Amy had never had a dildo in her before and spent her day in both dread and anticipation as she wondered how that expanding and contracting motion would feel.

Doctor Jamison noticed the missing dildo that afternoon and smiled to himself as he realized that one of the young ladies had borrowed it. He called Tamara to the lab and explained, Tamara burst out laughing and said, “obviously whoever borrowed it didn’t think about the significance of it being in the prototype testing lab, good thing we only display the ones that have passed the safety tests already, do you have any idea who took it?” Doctor Jamison said “No, but I’ll have central monitor all of the wrist bands tonight for unusual activity, I assume you wouldn’t mind being called when we figure it out so you can monitor them?”

“I won’t mind, that thing’s bad enough when you know what to expect, whoever took it’s probably going to need a friend before they’re finished. Besides, I really would like to see how it affects someone that doesn’t know exactly what it’s going to do to them. By the way, is it armed?” Doctor Jamison got a huge blush on his face and replied, “Yes, I armed it this morning, if it’s fully charged when used…” Tamara grinned and said, “let’s hope whoever took it is lucky then. We should know tonight.”

That night Amy got ready for bed early, she didn’t really have much choice as she had already soaked two of her panties that day just thinking about what she had planned. She took off all of her clothes and lay back on the bed, then got the dildo and started slowly stroking her slit with it; she was already very wet and hadn’t even really started yet. As she slowly rubbed the dildo up and down the length of her pussy on the outside of her mound she could feel her lips separate as the shaft of the dildo, soaked with her juices, slid right in between her lips so that the dildo was rubbing in between her legs and on her clit with every stroke. With a sighing whimper Amy had a short, sharp orgasm that caused her pussy to spasm several times as if it was trying to milk something.

Amy sighed and tilting her hand a little fed the head of the dildo into her hot little hole, she stretched around the shaft until the head popped into her pussy – over the next twenty minutes Amy continued to have small orgasms as she fed more and more of the dildo into her hot little hole, finally stopping with the ball up against her opening, but not quite able to get it in. She could feel her pussy stretching and could almost get it in but her angle was awkward and she couldn’t keep a steady pressure on the dildo. By this time Amy was almost in tears - she wanted the whole length of it in her and then she remembered the base of the dildo locked onto the plate thing. Amy realized that with the base on it she would be able to use her thighs to exert a steady pressure on the base of the dildo and should be able to get it into her that way.

Quickly Amy removed the dildo from its tight sheath and started to lock the base on it – it wouldn’t connect! She took a closer look and saw that the way it was designed, the switch had to be turned on before you could connect the base. She quickly turned it on and connected the base but was mildly disappointed when nothing happened; she had thought that it would vibrate and stimulate that way as well. Figuring it was defective; she fed the dildo back into her waiting pussy. Amy quickly found that by using her thighs properly, she could actually fuck herself with the dildo; she couldn’t get much stroke length but the aroused girl new it wouldn’t take much to push her over the edge into another orgasm.

In a few minutes Amy could feel her orgasm rising up to take her; as her orgasm hit, her thighs and legs clamped down, hard, right on the end of the dildo which promptly slammed the ball through her opening followed by the rest of the shaft behind it. Amy gave a short scream as another orgasm ripped through her and her pussy contracted hard on the unyielding shaft inside of her, at least most of it was unyielding. The ball on the bottom of the dildo was squeezed down very hard and it gave to the pressure, closing pressure contacts inside the dildo and activating a small powerful pump and a vibrator. The sudden vibrations sent Amy into another orgasm. Unseen by Amy, as her walls relaxed in the aftermath of a shattering orgasm, the ball at the end of the dildo grew inside of her hole to 3” around, effectively locking the dildo into her tight passage.

As Amy slowly came out of her orgasmic haze she realized that the ball inside of her was pressed right against her g-spot. The vibration was getting to her again as the dildo had never let up on her. Wanting a moment to relax, she reached down to remove the dildo and pulled on it. It didn’t budge and Amy figured that the ball was going to make it difficult to remove the dildo; she got a better grip and pulled pretty hard. That’s when the girl realized that she couldn’t get the dildo out, yet. Amy figured she would get it out easily after her next orgasm, so she started to work with the dildo, pushing it in to the hilt and then pulling it out until the big ball prevented it from being removed.

Meanwhile, unknown to Amy the dildo was slowly expanding and straightening itself as the little pump kept pumping up the dildo - as the big knot anchored the dildo inside her, and the base anchored it outside of her, the only place the dildo had to go was deeper into Amy’s passageway and that’s where it was slowly going. Amy reached another climax and as her vaginal walls relaxed, the ball on the end of the dildo expanded even larger inside of her snug passage. She again tried to pull the dildo from her hot little hole but the dildo was inexorably inching its way deeper into her as she writhed and moaned around the shaft. She suddenly realized that she couldn’t move the dildo in and out as she had before. She finally realized that the dildo was growing inside of her as it kept vibrating. Amy realized she was completely at the mercy of the dildo inside of her tight pussy and wailed out still another climax. Her body arched off the bed, muscles locked as she had her hardest climax yet.

This was the sight that Tamara saw as she walked in the room, sweet, virginal looking Amy had her eyes tightly shut, dildo buried in her pussy, body awash in sweat, nipples hard as marbles, involuntarily undulating her hips as the vibrating dildo just kept vibrating and slowly going deeper into the helpless young woman. Tamara decided to have some fun with Amy and said, “This how you spend your nights, Amy?” Amy’s eyes flew open and she turned a bright red when she saw Tamara standing there. Tamara went on to tell Amy “that’s one of our special dildo’s you’re fucking, or unless I miss my guess, maybe I should say that’s one of our special dildo’s that’s fucking you, impressive isn’t it?” Amy was starting to slide into another orgasm and all she could do at this point was moan.

Tamara then went on to tell Amy about her special fuck toy; “Amy, that dildo is designed to open a pussy from entrance to womb, when that ball on the bottom went through your opening it got squeezed tight and that started a pump and a vibrator. The pump first expands the ball on the bottom of the dildo to as large as it can get in your canal, typically 3 to 5 inches – this locks the dildo into your pussy and makes it impossible to remove it until the very tip of the dildo encounters fairly firm resistance.” At this point Amy had finished her orgasm and while she was starting up towards another, she was fairly coherent as she asked Tamara, “I can feel it slowly slithering into me, you mean it’s going to go in clear to my cervix?”

Tamara looked at her for a moment and replied, “Sweetheart - Amy, your cervix isn’t going to stop it.” Amy had a crashing climax at this news and almost hyperventilated. As she lay there, she felt the dildo slowly inching its way further up her passage spreading her cuntal walls as it worked its way inside of her. Eventually the dildo reached as far into her as she had ever been fucked and pressed into her further. Amy felt herself expanding around the shaft that was spreading her open and delving deeper into unexplored depths. As the shaft never stopped vibrating, Amy was almost constantly in a state of orgasm now. Finally, she felt the shaft press against what she thought was her back wall.

She let out a huge moan at the sensation – Tamara grinned at her and told her, “Sorry sweetheart, you still have more pussy to give up and that dildo’s going to get it all before it gives up on you.” As Amy lay there panting, the pump started inflating the ball inside of Amy’s entrance to a huge size. Since there was no way the dildo was coming out of Amy, it started to push very hard against her cervix. As Amy moaned and rotated her hips around the shaft it slithered around inside of her, finally aligning itself perfectly against the slight indentation that was the opening to the girl’s womb.

The dildo’s mechanism could feel the pressure against the head and it was very sensitive to pressure – it “felt” the lessening of pressure as it pressed firmly against the opening of Amy’s most sensitive area and it held the pressure steady as Amy’s cervix slowly started to flower open for the insistent invader. Since the vibrations never stopped, Amy was torn between the pain of being utterly invaded and the pleasure of being utterly invaded. As the head of the dildo popped into Amy’s womb, it shoved quickly against her immovable back wall and came to a sudden stop. Amy had a thundering climax, her vaginal walls squeezing and milking the full length of the dildo, the knot in her entrance deflating as the powerful spasms in her pussy squeezed it hard and forced the contents of the knot to spray itself out of the end of the dildo into her fertile womb.

As she came down from her climax, Tamara removed the special dildo from Amy’s thoroughly fucked pussy and looked at it closely. The tip was covered with a thin white coating and Amy had a flushed look from the bottom of her breasts to the top of her ears. Tamara quickly consulted her pocket computer and brought up Amy’s physical charts, then muttered, “Whoops, looks like the rabbit died.”