Shepard thought of taking some of his crew to the university to see lecture since Anderson recommended him to go there. And so Shepard took with him Garrus, Liara, Legion and Tali. Javik, Veetor and others wanted to remain on the ship. Surprisingly, nobody was suspicious about a Geth walking on the Citadel as long as he was with Shepard. Shepard's group arrived at the university so they went to the auditorium where other students were assembling to another lecture of calculus.
As Shepard and his group entered the auditorium, they spotted the turian counselor Sparatus at the top seats of the room so they went up to take seat next to him.
"Commander Shepard. I wouldn't expect you to come to the sanctuary of education."
"I was as surprised as you when I didn't see you on the vid-com, counselor."
"I do apologize, commander. This education system of yours is still new to me so I wanted to see if our future scientists and engineers can get a proper level of knowledge from it."
"I was told that you were here for a while. What are your opinions on our calculus?"
"Accurate. It's new to me but I can see similarities with our system. The lecturer seems to know what he's talking about… here he comes!" Sparatus looked at Daniel who entered the room. Shepard widened his eyes as he spotted Daniel coming towards the board. Daniel noticed them sitting up and smiled.
"Alright students, let's continue with the journey in exploring the intermediate calculus. I hope that the last time I was talking about improper integrals everything was clear to you. Now let's see look at something that many of you might use in engineering. The topic is – Differential equations of the first order." Daniel said and wrote the topic on the board.
"Now what in the world does it mean. Well, let's say this – Regular solution of some equation was a number or infinite number of solutions, right? So here's the idea – Differential equations are not standard equations. The solution is not a number. The solution is an actual function." Daniel said and continued writing on the board, "Basically, differential means that there are gonna be some derivatives in here and we are talking about the equations of first order. Can you guess what it means?" Daniel asked and one turian student rose his hand.
"Probably we will be dealing with equations including a first derivative."
"Exactly. There will be an equation having the first derivative inside and we have to find the function. Does that make sense to you? Now there comes the funny moment – All the time you were studying your calculus, you were actually solving differential equations of some kind. When you need to get rid of derivative, you have to apply integral. Here we will deal with some general types of differential equations and some techniques." Daniel explained and started writing the list of techniques on the board.
"So we will discuss these which are separation of variables, variation of constants, exact equations, substitution x/y, Bernoulli's equation. Even you might find some of the things I'm gonna talk about hard to understand, it has a wide usage across engineering but also biology, chemistry or physics since we know that the basic concept of derivative is an infinitesimally small change between two points so the results of some research can become quite accurate using the derivative. Now let's go ahead and we'll start with separation of variables."
The lecture took one and half hour. Shepard and others seemed to be interested in the concept of differential equations of the first order. Some more, some less but the lecture was finished and students left. Shepard's group with the counselor came down to him.
"Great job, human. It seems that you know what you are talking about out." Said the counselor.
"Counselor is right, Daniel. It was good to listen to it." Liara added.
"Heh, thanks. It was nice to remember my times at university." Daniel answered.
"Wouldn't you rather stay and continue lecturing our students?" The counselor asked.
"It's nice offer, counselor, but I think I'll leave this job to qualified lecturers working here. I was just doing a visit. I already belong on board of Normandy with Shepard and others." Daniel explained.
"Well… that's sad to hear. I think you would find a better use of your skills here than on the battlefield, but if that's really what you wish, I can say nothing else than: Shepard, make sure he'll make it out of war alive."
"Consider it done, counselor." Shepard said and the counselor left, "So, Daniel. The transformation is cured."
"Yeah, I feel way better now. How did it go on Tuchanka?"
"Krogans are cured as well. They will help us in war."
"That's good… well, I guess that now you're here, we can leave."
"Slow down, hero. We've just came here so it's time to blow off some steam." Garrus jumped into it.
"Come, Shepard. Let's have a drink and fun." Liara suggested.
"Although we're in war we should relax… Daniel? Care to join us?"
"Actually Shepard… after the last experience I'll be more careful. I'm gonna go back to Normandy."
"Shepard-commander. I'll return to Normandy as well." Legion added.
"Alright. Don't try to fly away without us." Shepard said and all of them left the university areal. Shepard's group headed towards the Purgatory club and Daniel with Legion were going back to Normandy. Both of them were silent but as soon as the airlock chamber locked for decontamination, Legion broke the silence.
"I missed you, Daniel." He said and Daniel smiled, looking at him.
"I missed you too, Legion."
"Daniel I… I need you to meet me in privacy…" Legion said, leaving the airlock as soon as the door opened. Daniel walked on the deck as well, getting greeted by Joker. He took some time before following Legion. Then he went in the elevator which led him to the third deck. He saw the door to life support opened so he went there and spotted Legion watching the mass effect core.
"I'm here, Legion." Daniel said and Legion went to him.
"Good that you came…" he said and then used his omni-tool, locking the door.
"Why did you lock the door?" Daniel asked and Legion faced him again, placing his three-fingered hands on both arms of Daniel's.
"Those touches, those feelings I get, Daniel I… I need more."
"What do you mean by more?" Daniel asked and Legion went back to the window.
"I've seen Garrus and Tali together. I saw how organic reproduction works."
"You mean you saw them… oh… and you want to… with me?" Daniel asked and Legion turned towards him, nodding, "Legion I… I'm not sure how it can work. I mean… you don't have the organs or… do you?" Daniel asked and Legion looked to the side.
"Unfortunately not… but I have an itch. I need to feel you within me, Daniel. I need the connection, the symbiosis." Legion said and came closer to Daniel, testing whether his copulation organ was ready, "I can sense that you want the same, Daniel."
"I do… I can't control it, Legion. It always happens when I see you… I want to do it with you too."
"Maybe… Daniel, please sit on the bed. I need you to see something…" Legion said and Daniel sat down to his bed. Legion uncovered a plate from his crotch, showing a hole in there.
"What is it?" Daniel asked, his look focused on the round hole.
"An oil drain. We use to empty ourselves draining the used oil out. Do you think this could work? The itch is coming from there…" Legion asked and Daniel reached out his hand, putting few fingers inside. To his surprise, it was wet, smooth and cold. Legion started to shudder when Daniel touched him in that place.
"But Legion it's… tissue!" Daniel looked up and Legion's eye opened a little more, "Legion?"
"Daniel… do it again…" Legion said in deep tone and Daniel stuffed his two fingers inside again, making Legion buzz, "Y-Yes! Daniel! Please… take off everything!" Legion said and Daniel chuckled, taking off all the clothes. Legion's body was warmed up much more than before. The Geth helped Daniel to take off his clothes. Soon he saw there Daniel sitting on the bed with no clothes on, his penis fully erected and Legion admired it. His metal hand took a soft grip around the hardened meat Daniel had, "It's… beautiful… I need it… Daniel, I need you to do it!" Legion insisted.
Daniel lied down on his berth, positioning his manhood up and Legion rested with his knees aside Daniel's body. Legion's drain was dripping some oil against Daniel's penis and soon Legion let Daniel get in him. Since the first moment Legion had to place both hands on his port as he felt rush of warmth and satisfaction through his entire body. His eye opened wide, dimmed and Legion was moving his bottom part up and down. Daniel under him was gasping for air as Legion tried his best to satisfy the itch and Daniel, rubbing Daniel's manhood inside him.
The feeling Legion was experiencing was indescribable. He wanted more, Daniel deeper so he pressed himself down even more. Daniel helped Legion while synchronizing his movements to Legion's in other direction. After a while of loving, something was happening to Legion, he was slowing down, holding his drain again.
"L-Legion? What's up with you?" Daniel asked, taking Legion's arms.
"Daniel something is happening to me I… I can't control… a-ah…!" Legion pushed out of himself. Daniel could feel and see some black goo covering his manhood, "I'm… sorry… but it felt too good to be stopped…" Legion explained and Daniel felt how the friction eased. It was oil around his manhood so Daniel used the opportunity and rolled around so he changed position with the Geth. Legion was at the bottom, "Daniel?"
"I don't mind it, Legion. Let me give this to you." Daniel said and when Legion was at the bottom, Daniel thrusted himself deep within Legion's drain. The Geth was losing himself in sensation as the feeling of total happiness was running in his wires. He wanted Daniel everywhere so his next move was wrapping everything around him, arms, legs… making sure Daniel would stay close to him. Daniel lied on Legion's body and that was the moment of Legion's absolute happiness.
He reached it as his tactile feelings were concentrated on feeling Daniel's skin against own metal. It was complete physical connection between synthetic and organic. Legion felt everything, Daniel's skin on his hands, legs and body and Daniel's manhood within his oil drain. It sounded that Legion was begging for Daniel not to stop but Daniel was almost done and he had to do it.
"Legion I… I'm close!" Daniel said and his breathing was intensifying.
"No…! Daniel! I don't want-" Legion said but Daniel already filled Legion with his semen, that event was led by screaming Legion's name and hugging the Geth tightly. The Geth in response sparked. Daniel rested exhausted on the Geth's body, trying to grab his breath, "Daniel…?" Legion asked.
"Legion we… we did it." Daniel breathed.
"Yes. You helped me to fix the hole…"
"But Legion, you still have that hole in your chest."
"I didn't mean that hole, Daniel." Legion explained and Daniel smiled. Both of them reached absolute happiness. Legion examined the liquid Daniel left within his drain, thinking: So this is how reproduction works. Before another mission, Legion deactivated himself and Daniel fell asleep so they both could get rest.