A/N: My many thanks to everyone who has reviewed or favorited/followed this story.

Some of you have mentioned wanting or not wanting certain pairings and in particular you want more Oga and Hilda, not to worry they will always be the focal couple. However, to keep the story interesting, I'm weaving some other back stories into the plot which include other characters. My intent is to keep pairings similar to the canon storyline, so unless the pairing could conceivably be a secret, any non-canon pairings are likely to be accidental or a fantasy/dream.

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The Secret Life of Hilda and Oga - Chapter 13

"Lamia what is going on?" I inquired, perplexed at her odd behavior.

"I'll tell you later," Lamia said not even bothering to look back at me as she scrabbled through the pockets of a blouse. She was not having much success with the search for her iPhone in the pile of clothes and with every second that passed, she seemed to get more frantic.

I watched with some amusement as my friend who was so often the clinically detached intellectual, lapsed into what I could only describe as brainless panic. Something must really be rattling Lamia. My amusement may have been just a little enhanced by the fact that I could see that her white lab coat was hanging on the hook on the wall - where she always hung it out of habit, and that the outline of her phone was quite visible in one of the pockets.

I decided not to tell her about it. Lamia's flippant refusal to explain things had begun to irritate me. In fact, the more I thought about it, the more I began to feel like in the last few days I had been unwittingly bounced around like a ball by Lamia's none too accurate theories and ideas. It was time for me to take back some control.

The latest events this morning caused me some concern. Why was Lamia in such a panic to call Oga? Did it have anything to do with that invisible fuck? Or, had Lamia simply woken up and remembered something so much more important, did she screw something else up? I suspected that Lamia knew what had happened to her in bed. She did not seem particularly upset at having sex with that invisible being or device, if anything it looked like she enjoyed it. If she actually had been molested against her will, Lamia would be acting much more agitated. Who knows, maybe Lamia subscribed to some kind of invisible automaton rent-a-fuck service that delivered regular morning wakeup sex, and she had simply forgotten to turn it off this morning.

I knew I might not get any straight answers without some leverage; besides it was past time to start evening our score. Being careful to move nonchalantly, I got off the bed, walked past the lab coat, and dipped my hand into the pocket palming the iPhone in one smooth motion as I made my way to the bathroom.

I was just shutting the door of the bathroom when I saw Lamia notice her lab coat hanging on the wall and rush towards it. I grinned to myself - Just a tiny bit too late Lamia.

Now safely inside the bathroom but not completely secure due to the absence of locks, I hurriedly made my way to the toilet, sat down, and started to pee. Even Lamia, if she walked in would probably give me some privacy if she saw me sitting here. Even so, I looked for something into which I could hide the iPhone if she walked in. Nothing nearby - I would have to work fast and hope that the small half height partition, which separated the toilet from the main part of the bathroom, would be enough to give me the second of time to stop and hide the phone.

I turned on the iPhone and started going through the photo albums and email system. The incriminating photos from earlier were there of course and true to her threat, the photo album was set to automatically back up into a secure online location. Swiping quickly through some recent emails I found nothing of much interest, they were mostly to/from her patients.

I installed a hidden app that would secretly transfer any photo taken to one of my online accounts. Lamia would probably find it eventually, but not before, I got some juicy pics of my own. Finally, I put the phone in silent mode and practiced taking surreptitious pictures one handed. The whole process took probably less than two minutes but with the threat of Lamia walking in at any time, it felt like an eternity and I realized my pulse was pounding.

After a few breaths to calm down, I got up, flushed the toilet, donned a spare bathrobe and quickly finished my ablutions. Then I strode out with the iPhone hidden inside the right pocket for quick access.

"Sorry Lamia, I really had to pee and freshen up."

Lamia was now standing in the middle of the room and the gestures she made seem to indicate she was thinking to herself and trying to replay the events of the previous night backwards. She was so engrossed she did not seem to realize she was still stark naked. Perhaps she was used to walking around nude in her own home. This was normal for demons, but after all these years of seeing her prudish side, it was unusual for me to see the real Lamia. Yet somehow, I had the feeling Lamia had no sexual experience with real life males.

"I wonder if I dropped it on the way home?" she muttered to herself.

I walked to Lamia's closet and found a section with her nightclothes. It came as no surprise that there were a several risqué lingerie items. I picked an almost see through red lingerie dress with black lace. I handed it to Lamia who absentmindedly donned it. It had the effect I had hoped for, while the material covering gave an illusion of modesty, the partially see through fabric and cut actually made Lamia look very sexy. She looked like a pretty schoolgirl dressing to seduce. Her pert nipples were quite visible poking against the thin fabric and the shadow of her pink pubes showed lower down. As she moved the skin of her mid-thighs caressed the bottom of the skirt and every now and then you would get a glimpse of her pussy.

Perfect, now all I had to do was to wait for the opportunity to snap some pics while Lamia was in a compromising position. I didn't have to wait long. Suddenly, Lamia gave a small squeal, which was soon followed by stifled moans of pleasure. Her knees buckled slightly and she staggered backwards and lay back on her bed with her butt on the end of the bed, her legs spread, knees bent and her toes touching the floor. I walked closer and to my amazement, it looked like Lamia was getting oral sex from an invisible lover. It was weird not to be able to see the person, but the pattern of movements over Lamia's well-exposed labia and clit were unmistakable. Furthermore, Lamia did not resist and in fact looked like she was enjoying herself. In fact, she had all but forgotten I was here.

I was so engrossed in watching the unusual spectacle I almost forgot about the camera. Slipping out the iPhone I held it in my palm so that the camera lens peeked through my fingers. A casual glance my way would only see my palm up near my face. I began snapping pictures; I concentrated on getting the most explicit, erotic and embarrassing views. Lamia's red and black lingerie contrasted nicely with her pale skin and made the photo's all that more enticing. Before long before the oral sex turned into full on sex.

Then I noticed something quite interesting, Lamia's invisible lover seemed to be able to interact with other parts of her body, I could see her nipples being kneaded and the movement of her skin and the impression of a body pressed against hers. It also looked like Lamia could interact with the person based on the position of her arms and hands around her lover. Yet when I tried to touch the person I could feel nothing, my hand went right through where that person should be. In fact, I could crouch between Lamia's legs and get the most incredible images of their intercourse including one photo of the sperm shooting out of an invisible penis into Lamia's gaping pussy.

Lamia and her lover went a few more rounds, it was nothing like my marathon sessions with Oga but they still looked quite intense. Half way through I had collected enough photos to serve my purposes and left Lamia to go make breakfast. I thought about the strange events this morning starting with Lamia's first invisible fuck, then her frantic concern to call Oga, followed by a much more extensive invisible sex session, where Lamia was clearly a willing participant. Was Oga connected in some way, or was this simply bad timing and I had inadvertently uncovered Lamia's secret perversion? I would get the truth out of her soon. I hoped I would not have to use the photos to twist her arm this time. It would be nice to keep them as an ace in my pocket for the future.

When she had finished, Lamia headed to the bathroom and after a few minutes, her head peeked out. She would not meet my gaze and seemed scared to come out. I said as nonchalantly as I could, "Breakfast is ready, come get it before it cools down."

Lamia had a strange look on her face when she sat down. Her face was still flush from the afterglow of the sex, but she looked embarrassed... no, it looked more like a mixture of shame, guilt and fear. I let her take a few bites then I said, "Okay Lamia, what was that all about. Come on spill it and no lies."

After a long silence, Lamia said hesitantly, "Before I tell you about that, could you answer a question?"

I was suspicious but the look in her eyes was pleading and I nodded.

"Hypothetically, what would you think if we could solve our problem with Oga by having him believe that he is having sex with you, when he isn't."

"What, you mean like virtual sex with a robot?"

"Well, not exactly - it would be with a real person, actually a demon, but he would think it is you."

"You mean you want to send a succubus to Oga, have the succubus shape shift to take on my form and seduce him?" I was beginning to have a bad feeling about this and it was all I could do to keep my voice calm. Getting mad would make Lamia clam up.

"No, it would be using a device, kind of like phone sex but more physical. He would think the device is connecting him to you but is actually connecting to someone else. Maybe someone you know and trust, hypothetically speaking of course," Lamia said trying to sound calm, but I could see a bead of sweat trickle off her forehead.

"Hypothetically speaking, would that person you suggest be you Lamia?" My self-control was starting to strain at the seams as I smelled a rat, but I asked the question as if I might seriously consider it.

"Well, since you are my best friend and we are in a difficult situation together, I would be willing to volunteer. I wouldn't do it for anyone else." Lamia said carefully.

My instinct was to grab Lamia to shake the whole story out of her. It was obvious now that what had happened earlier was Lamia having virtual sex with someone. The question was how, and with whom. She could not already be having virtual sex with Oga, could she?

I forced myself to stay calm and think rationally; not so long ago I had fantasized about Oga having sex with Lamia... and I was okay with it, sort of. If I could believe what Lamia was saying, somehow, Oga would "think" he was having virtual sex with me, but it would actually be Lamia. Therefore, it was in a way physically cheating on me but not mentally cheating on me. In fact, in some ways I would be guiltier because it would be me deceiving him. I needed to know more, how it worked, and why would it not be possible to let Oga have the virtual sex with me directly. I decided to play along for more information, besides to my own astonishment, I realized I would not mind that much if it was Lamia. I knew that there were certain females, such as Aoi Kuneida who would be a 110% no-way-in-hell - but Lamia; somehow, the idea excited me a little. I was also a little surprised Lamia would be so willing to do it. Thinking back, I had also been quite surprised when Lamia had no problem drinking Oga's sperm. Perhaps her part succubus origins had a stronger influence than I thought.

"Alright, suppose I was okay with it. Of all the people I know, I guess you would be the most likely person I might allow. How would that work? Also, why not just let him have virtual sex with me directly?"

There was a palpable sense of relief from Lamia when she continued, "Have you heard of ona-holes or artificial vagina's?"

"Huh?"

"You know those fake rubbery vaginas that guys use to masturbate. Think of a dildo, but instead of for women the opposite, for guys."

"No, I didn't know they existed. Every guy I've ever seen masturbate just jerks off with his hand. "

Lamia rolled her eyes at my naivete then walked to a cabinet where she took out something round and long. It looked like a flashlight. She brought it over for me to examine. On the larger end there was no glass lens, but instead a soft rubbery substance molded to look like the outside of a vagina. Fascinated, I poked inside and found the opening extended down the length of the tube. I could see how a guy might get off by sticking his penis into one of these.

"So how does this give real virtual sex, it seems like just a piece of soft rubber."

"Well, this one is just a sample from the human world. However, imagine if there was a special version which uses Trans-dimensional technology to actually connect this artificial vagina with a real demon's vagina."

"Okay, I get it so we give Oga this special vagina and tell him he is actually having sex with me when he uses it - But why connect it to you instead of me?"

"They are very rare, in-fact there may be only one in existence."

"You are telling me that you have the only one in existence? ... And that one is connected to your vagina? You want to tell me about it?"

"Uh, I got it sorta by accident. Many years ago, I was a researcher for a scientist working on Trans-dimensional devices. The artificial vagina I am talking about was one of the final prototype models. We believed it was going to be a huge moneymaking hit and were just about to launch production, when the scientist - my boss and a Trans-dimensional demon himself, disappeared. I do not know if he was kidnapped, killed or simply fled for his life. Trans-dimensional technology is very much in demand especially by the rich, powerful and the nasty. I had to self-destruct the lab to prevent the technology from falling into the wrong hands, then I fled taking the artificial vagina with me."

"Isn't that stealing?" I asked, although I knew such moral issues usually did not bother Lamia, or most demons for that matter.

"Hardly; it was mine in more ways than one. You see the artificial vagina is actually a real vagina held in dimensional space. In this unit I had used my own vagina as a placeholder until it could be transferred to the final owner."

"So it can be transferred to someone else's vagina?"

"Um, well... yes, but only if it has never been used." Lamia stammered.

The pieces were finally falling into place now. The Dragonhide box that I had received from Lamia would certainly have been about the right size to hold the artificial vagina. She had said it was for use in emergency only. I guessed that she was loathe having to part with this priceless device, but had decided our situation warranted it in an emergency. I also, guessed that her original intent was to transfer the connection to me, but somehow it got used before that happened.

To be precise it was probably used this very morning, and all signs pointed to Oga as the most likely candidate since it had been under our bed. Maybe, when I had gone missing, Oga looked under the bed found the box and somehow unlocked it. Then seeing what must have been an incredibly real pussy in the box, decided it was a present from me to use. Somehow, that last part did not seem realistic. I could not imagine Oga sticking his penis into some strange device from the demon world. On the other the hand, he might have been horny as hell in the morning, and maybe something in the box reassured him it was safe. I was not sure how I felt about this. It was clear Lamia had not meant for this to happen, besides, we could not be sure it was Oga. Perhaps someone had stolen the box, in which case, Lamia might be in big trouble.

I looked steadily at Lamia and told her what I had deduced. She nodded resignedly, tears started to stream down her face and she started to sob. "I'm so sorry Hilda, I didn't mean to have virtual sex with Oga, it was supposed to have been transferred to you."

"One last thing, did you put any kind of note or instructions in the Dragonhide box?"

"Um, I put a note that said 'Hilda's Pussy' with a smiley face on the end. It was supposed to have made you smile if in an emergency I asked you to open the box." Lamia wailed and continued sobbing.

That was it, if Oga saw a note on the artificial vagina saying 'Hilda's Pussy', there was a very good chance he would think it was a present for him.

Ugh. If there was one thing I could not handle, it was seeing Lamia cry. I moved around to her side of the table put my arms around her and reassured her that I was not angry. Truth be told, I was not sure how I felt, Lamia had not meant to inadvertently have sex with Oga, if indeed it had been Oga. However, it was clear Lamia believed it had been Oga and not only that, it was obvious she had enjoyed every minute of it. Then there was the perverted thrill I got from the idea. The sooner I found out the truth the better, Lamia had been right we needed to call Oga immediately. It was time for me to 'find' the iPhone.

I lead Lamia to the bathroom and said, "Go ahead, freshen up and get ready for the day. I'll start looking for the phone. You're right we do need to contact Oga as soon as possible."

Then going around a corner so that I would not be immediately visible if Lamia came out of the bathroom, I quickly took the phone out of my pocket and erased all local traces of the photos I had taken, making sure I had my online backups. Then I turned the silent mode off. I was no iPhone expert but as far as I could tell, there was no trace of me having used the phone. Looking around I scanned the place for a location where the phone could potentially have fallen last night. I found a long narrow gap underneath a cabinet between the doorway and the location where Lamia's labcoat was hanging. It would have been quite plausible for the phone to have fallen out and bounced unnoticed into the gap.

"Lamia, did you look under the cabinets for the phone?" I yelled across the room towards the bathroom.

I heard a muffled "No!"

Perfect I thought. I slid the phone under the cabinet then waited. When I heard the bathroom door open, I pretended to search under the cabinet and slowly pull out the phone with the tip of my finger making sure Lamia was looking.

"Found it!" I said triumphantly.

"Awesome, we would have been in a lot difficulty if we had lost it outside," said Lamia sounding much perkier and apparently not suspecting a thing. I felt a little guilty for deceiving my best friend, but I consoled myself with the knowledge that she possessed numerous embarrassing photos of me. Until, she willingly destroyed them, this sort of thing was fair game.

"Okay time to call Oga and find out what really happened." I said.

to be continued...

Next chapter - Who is Lamia's mystery lover?

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