Amy Rose was usually more prepared when she went out at night. Being ready for the unexpected was what allowed her to deal with the dangerous encounters she and her friends often had with Eggman or any of the other various enemies they'd made over the years. It was even how she kept tabs on Sonic and could track him down by understanding where he'd go and what he'd want to be doing before he got there. Sure her temper could get the better of her at times but that didn't mean she wasn't resourceful in her own right. Just tonight proved to be a bad example of that as she was covering her head while rain practically poured down over top of her. It was just a little outing to get a quick bite to eat and maybe another stop on the way home for some dessert. There were storm clouds in the sky and a warning of rain coming but Amy figured she'd be able to out run it before it came upon her. Unfortunately that was poor judgment on her part as half way through her walk thunder was rumbling overhead and then the rain came down like someone tipped over a bucket. Without an umbrella she was soaked from head to toe and looking to just get out of the rain until it either stopped or eased up enough that she wasn't being pounded upon by each drop of water. There were large trees around her but Amy knew that was a dangerous place to take shelter as a lightning bolt could easily send one up in flames despite all this water. Thankfully she spotted a place normally too spooky for her but in this situation was a sanctuary. Running through the grassy fields and various trees around her Amy Rose took shelter in a nearby cave that was carved into a large rocky wall that made up the side of a hill. The inside was black like the night but she needed anywhere that didn't involve water being dumped onto her. Once inside Amy shook her head to get the rain drops off her quills and let out a sigh of relief. "Guess I'm stuck here for a while." Shaking her hands to scatter the water off of them she looked at her dress to see it was soaked all the way through. The wide brim managed to hold itself up around her hips but the cloth was practically stuck to her body with how damp it was. "I'm never going to get dry wearing this." Amy complained and looked around the cave and back to the entrance. It seemed no one else was hiding in here, not even any animals. She'd usually prefer company in a situation like this but for what she had to do next it was better to have privacy. Reaching behind her back Amy unclasped the latch around her neck and peeled the front of her dress off, already feeling better removing it off her skin. Wiggling her hips she pushed the dress down past her legs and carefully pulled them through to take it off. It wasn't easy to see but with the lightning flashes Amy was able to check the sides of the cave and find a rock that was sticking out just a bit from the rest. Carefully feeling around she hung her dress on one of the rocky points to let it dry. Deciding she didn't want to get the rest of her clothes dirty either Amy slipped her panties off as well, hanging them on another pointy rock near her dress and sighed as she stood in just her boots. "Good thing I didn't invite anyone to come out with me today. Wouldn't be able to do this with even Cream around." Finding a smooth stone nearby Amy sat on it and looked out the cave entrance, her head leaning on her hands as she watched the rain drops fall on the grass outside. Thankfully she was already feeling a little dryer being out of her clothes but didn't want to stay like this if she could help it. Never knew when anyone might show up as well looking for shelter like she was. Since the rain wasn't very entertaining Amy studied the inside of the cave as best she could when the lightning flashed outside. There wasn't much to see but her eye did catch something circular sitting in the middle of the cave. "That's weird, doesn't look like a rock or anything." The next time lightning provided her with the ability to move safely Amy Rose walked deeper into the cave and picked up the circular object. She noted it was metal and clearly hand made instead of something natural. "It's kind of thick, wonder what it's supposed to be?" Flipping it around in her hands Amy noticed a small switch and used her thumb to slide it, causing the metal ring in her hand to glow with a blue light. "Wow, it's pretty." Amy said in admiration of the odd device before her. "It's kind of big. Is this some sort of tiara?" Noting it would fit on her head rather easily Amy decided to see if that was the case and put it on just underneath her ears. "Hmm... kind of snug but it fits okay. I'd need a mirror to see if it looks good. Maybe if I got a blue dress to match it?" It was pretty useful in that it gave her a little more light to see what was around her. Amy considered turning it off to preserve whatever batteries kept the light going but found herself distracted when another light shined brighter deep inside the cave. "Uh oh. Is there someone else there!?" She asked and covered her chest and crotch with her hands, turning around to see where the light was coming from. However nobody responded to her question. "Hello? Anyone home?" Deciding she'd probably given anyone in here a show already Amy pulled her hands away and walked deeper to see what was shining in the darkness. Further inside Amy came across a large pod of some sort. It was metal and painted a dark color, with several holes all over it. In the center was a glass top with a glowing blue liquid inside. She circled it a few times before finally coming across some letters painted on the side of the strange pod. "Chaos... Container? What the heck is a Chaos Container?" Knocking on the top of the glass lid with her fist to see if there was any reaction provided no results, just the sight of the blue liquid inside bubbling like some kind of lava lamp. "This seems like something Eggman would have put together. I should probably let Sonic and Tails know about it after I get home." The entrance of the cave was still visible from where she was inside and Amy could tell the rain hadn't quit while she was exploring. "Whenever that's going to be anyway." Having nothing else to look at Amy sat down again with her back to the machine and hugged her arms around her legs. Normally when she was in a position like this while naked she'd be relaxing at home watching TV or sitting at her computer. A much more welcome place to be than in a cave watching water fall on trees and grass in the distance. At least she'd be entertained by shows or videos people had made. Maybe even watching some adult entertainment if she had her clothes off while sitting around with nothing to do. She didn't look at stuff like that a lot but every so often it was fun to see naughty things and pleasure herself while watching. Usually it was just seeing couples have sex while she wondered what it would feel like to be in that position with the person she loved. Every so often though she'd look for something more exotic and found not just videos of people doing more wild sexual acts but also really kinky fantasy stuff like tentacles that violated girls bodies. She didn't know why that appealed to her but something about it was exciting. Maybe because it could never happen in reality so she was curious what it would feel like? The idea of a creature that was made just to move inside of a girl and pleasure her was arousing. Amy could feel the area between her legs getting wet and it wasn't from the rain water. Touching herself might have felt good and helped to pass the time but she wasn't interested in doing it inside of a dirty cave. Still the craving was there and she was already planning on what she'd do to entertain herself later tonight when she got home. So distracted by her thoughts Amy didn't notice the pulsing glow of the metal circlet around her head or the more active bubbling of the liquid in the pod behind her. Wet tentacles of blue water emerging from the holes in the metal pod and slowly becoming more solid as they crept up and over top of her. "Hey, what the heck is this!?" Amy cried out as the tentacles wrapped around her shoulders and stomach, pulling her up into the air over the metal pod they were coming out of. She kicked her legs and tried to pull the tentacles off her body, but they seemed to register her resistance and began to wrap around her wrists and ankles to keep her from struggling. "Get off of me! Get off right now! Let go of me before I smash you to metal bits all over the floor!" Her shouting did little to dissuade the tentacles from keeping her restrained, Amy looking at their tips in the glowing blue light from the pod. It was weird but they were shaped like the tips of the tentacles she saw in those fantasy porn videos. That was when she felt one rubbing between her legs. "Whoa, hey you! Stop doing that!" Amy ordered but it didn't really convince the tentacle to quit. Instead it began to rub its length against her pussy, applying pressure to her already wet folds from her fantasizing earlier. She tried to close her legs but wasn't strong enough to pull them away from the grip they had on her ankles. Worst of all she could feel it touching her in a way that was turning her on. "What the heck kind of machine is this? Who builds something like this!?" Wiggling her body around to try and get free she felt the tip of the tentacle push against her pussy lips. "No, don't you dare try that! Don't you daaaaAAAAARE!" The tentacle pushed up inside of her and Amy's body clenched as she felt herself invaded. She'd explored her body with her fingers before but never had something this big inside of her or this much like an actual cock. Pulling at the tentacles that bound her together with all her might Amy panted but couldn't break free as the tentacle inside her began to push in and out. Gritting her teeth as the sound of the wet tentacle fucking her pussy filled the cave while it repeatedly pushed into her. "I can't... I can't fight it anymore..." Letting her body relax Amy resigned herself to her fate while it explored deeper in her. Once she began to relax the tentacles around her stomach slid up her body, slipping around her breasts and gripping them in a tight squeeze. Amy usually played with her own breasts when she masturbated but it was different having someone else (or something else) grip them instead. They wrapped around her tightly and the tips teased at her nipples making her moan louder into the echoing of the cave. Whatever this thing was it really enjoyed making her feel good and she was starting to give in. Though her eyes opened wide when she felt the tentacle behind her push against her ass. "W-wait... not there... I'm not..." She tried to argue but it didn't listen to her, pushing harder against her ass and slipping inside. Amy cried out when she felt it wiggle into her, pushing in deep and filling both of her holes. "Oh no! Oh it's in me! I can feel them both in me!" The tentacles that had pushed into her body were pumping together now and Amy could feel them rubbing nearly against each other inside of her body. The tentacles that had kept her ankles restrained moved to her ass to hold her up and spread her apart to help it push inside of her. Unable to think clearly anymore Amy let it use her like it wanted, finding it felt a lot better when she just let them take her for all she was worth. Her wrists were freed and the tentacles slipped into her hands. As if she already understood Amy began to gently stroke them with her fingers, finding it felt pleasant to have a grip on them and know what they felt like. Panting hard with her tongue hanging out she couldn't believe how much her body was going through right now and somehow it all still felt good. "I bet... I bet... I could take more." Amy said out loud to herself not truly thinking about her words. Though it came to mean something when she felt another tentacle push against her pussy while the first was still inside of her. Gripping the ones in her hands hard Amy braced herself as the second tentacle slipped into her pussy along with the first. "I'm so full!" Amy shouted feeling it stretch her pussy entrance further to fill her up. She'd never tried to push this much inside of herself before but found it felt great to have her body pushed to the limit. Her pussy juices dripping down the lengths of the tentacles and over her own ass as it spilled out with each wet thrust into her body. To help her along the tentacles at her back and ass moved her to a sitting up position and shoved directly up inside of her to let them move deeper. Blissfully Amy looked down to see herself stretched out with the two tentacles inside of her... but she wondered if she could take more? As if to respond to her request another tentacle moved up towards her pussy and Amy already knew why it was there. She didn't know if her body could take all of this but was so far along that she didn't care anymore. Spreading her own legs further Amy watched as the third tentacle began to shove up against her pussy, trying to relax her body as best she could. Shivering as it wiggled its way inside Amy felt it stretch her pussy even further and cried out in pleasure and pain as her body was pushed farther than she ever thought possible. "I might die from all of this." Amy wondered aloud but didn't care as she was in ecstasy from the large tentacles filling her body. "Just finish me... finish me... I want you to finish me off." The tentacles responded to Amy's cry for more as she felt another one pushing against her ass. It was thick, even thicker than the ones inside of her pussy but she didn't try to stop it. Instead gripping the tentacles in her hands as she felt the fifth one press up against her ass hard. There was so much pressure she wasn't sure it would fit but when it finally slid inside Amy let out a cry that filled the cave. Moaning hard as she was pulled up and down on the thick tentacles inside of her body. Her stomach bulging with all of the objects filling her holes. "It's so good! It feels better than anything!" Amy cried out happily and began to stroke the tentacles in her hands quickly as her eyes rolled upwards in her head. "Please I wanna finish! I wanna cum!" Responding to her cry for release the tentacles wrapped around her thighs and moved her faster over the thick lengths inside of her. Amy feeling her stomach press upward from the thick mass with each pull down onto them. Shaking hard her lower body squeezed her muscles together as best she could as she climaxed over the tentacles filling her. In return the tentacles came as well, shooting hot cum inside of her and onto her face and chest from the ones she was stroking in her hands and around her breasts. As her climax kept going so did the tentacles as they filled her with more and more sticky cum, her stomach bulging from everything she was taking inside and her face and breasts covered. Once it finally ended Amy let go of the tentacles in her hands and felt her strength give away. "I feel so good... I feel so good... I can't believe I feel so good getting fucked like this." Never in her life would she thought she was capable of doing something this sexual but now she couldn't think of anything else. Leaning her head back Amy surrendered all her strength, the metal circlet on her head slipping off past her ears. When the circlet fell off her head the tentacles began to lose strength as well, growing smaller rapidly and slowly lowering her as they shrank and retreated back inside of the pod. Amy was left laying on the glass lid of the pod and groaned as she pushed the cum out of her body that had filled her, watching her stomach return to normal now that there wasn't so many foreign things filling her body. When the pressure was relieved from insider her body Amy turned around to see that the liquid inside the pod was docile again. Nearby on the floor of the cave was the metal circlet she'd been wearing on her head. Climbing off of the pod Amy staggered over to the circlet and picked it up, flipping the switch to the off position. When the circlet stopped glowing so did the pod. "Wait... wait a minute. This thing is what turned it on?" Amy realized as she looked at the metal pod and the metal ring in her hand. "So it turned on after I put it on my head. Does that mean that... when it did all of that stuff to me that I'm the one who-" She realized that the summoned tentacles that had violated her body weren't from some nefarious creation designed by Eggman but instead her own imagination while sitting near it. Her cheeks blushing nearly as red as her dress Amy decided to leave the circlet off for now. Stepping out into the rain Amy let the water wash off the evidence of her little adventure inside of the cave. Thankfully no one had been around to see or hear what she'd gone through or her cleaning up afterwards. She wondered if Sonic had come across her like that though if maybe he'd see her as more of a woman now? Heading back inside the cave Amy waited until the rain had eased up, her dress and panties drying off well with how much time they had to hang. She was going to need a bath for herself after getting home but that was okay since she'd finally be safe and sound. Also she decided to keep that metal circlet with her and not let Sonic or Tails know about the pod she found right away. It might have been dangerous if someone else found it but while it was in her possession there was still some fun to be had.