Title: Making Space Telescope

Universe: G1

Characters/Pairing: Skyfire/Perceptor

Rating: M(NC-17? I don't know the rating system well...)

Warnings: slash, bad grammar, sticky sex

Note: I hope this is worth your wait

However, the next day, they did not have much time together as there were some things to be taken care of. Luckily, Perceptor and Skyfire were less frustrated than the day before so the Autobots did not have to fear them. When the day wound down, Perceptor and Skyfire returned to their quarters. Skyfire got back first, and after a nice shower he was recharging lightly on the berth, and then Perceptor came in.

"Skyfire."

… And Perceptor straddled Skyfire on his lap. Skyfire woke up instantaneously. But Skyfire was confused a little.

"Percy'?"

"Well, we did come to an agreement last night didn't we?"

"What? Oh. Oh!"

"Good to see that you recall the agreement."

"Uh- so you want to do it now?"

"Why not?"

Perceptor leaned in and kissed Skyfire on the lips. The sleepy daze in Skyfire disappeared and Skyfire kissed back. Skyfire's hands touched Perceptor's shoulders, back, waist, and then hips. Large gentle fingers carefully massaged the sensitive wires there, and Perceptor moaned. Panting lightly, Perceptor took his hands down Skyfire's codpiece. Lightly running his finger around, Perceptor felt how hot Skyfire was.

"Open?"

Skyfire only managed to groan a reply. Skyfire's codpiece snapped open and his spike fully extended very quickly. Although Perceptor was expecting the size to be fairly big, seeing it made him worry a bit. He stared so hard that Skyfire was feeling nervous.

"Oh my. This is impressive."

"Thanks?"

Well, but the valve was made to take the spike and the spike was made to go into the valve, so it should go in. Ending his thought, Perceptor wrapped his fingers around the girth and slowly pumped it. It did not take too long for Skyfire's spike and Perceptor's fingers to be sleek with lubricant and precum.

"Primus… Percy'… I want you now…"

Skyfire gasped when Perceptor's fingertip went over the tip of the spike. More precum oozed out. Perceptor smiled so sweetly.

"Well then, you should utilize your fingers quickly. I will not stretch by myself."

"Oh… I thought that yesterday was enough?"

"Yesterday's stretching would have been sufficient for interfacing yesterday, and for today I think I only need just a little bit more stretch and lubrication. Will you do it?"

"Of course."

Almost blunt fingers of Skyfire entered Perceptor. Now it was time for Perceptor to moan and gasp loudly. Enjoying the silky walls against his fingers, Skyfire added another, making it total of four fingers. As Perceptor was stretched quite well yesterday, it did not take too long to stretch him enough.

When both of them felt that it was enough foreplay, Skyfire gently pulled out his fingers. Skyfire's fingers were covered with lubricant and that made him proud subconsciously. Skyfire held Perceptor's hips and slowly pulled him down on to the spike. Both of them groaned when the spike pressed on and in to the valve.

After the tip went it, they had to stop to catch their breath. Perceptor was much smaller and Skyfire was much larger, and it made things much more intense. As Perceptor barely held on to Skyfire's shoulders, he mumbled random science gibberish. If Skyfire was not feeling so overwhelmed then he would have laughed in good nature to Perceptor's ramble, but Skyfire was in no better position. All he could do was not push down Perceptor all the way right now.

When Perceptor was calmer, Skyfire guided him down away. This time he could not stop as Perceptor's soft passage clenched so tightly around his spike. It was overwhelming in so many senses. It felt like hours have passed when the tip bumped the ceiling node. Perceptor whimpered a scream and Skyfire stopped.

"Sky'! Sky'!"

"Oh Percy'… Am I hurting you?"

"No! Just… Just…"

Skyfire did know what Perceptor was trying to say. But he was so cute with his faceplate heated and trembling. Skyfire picked up Perceptor's hand on his shoulder and kissed it.

"I love you."

Perceptor whimpered in response. Really, with the gravity pulling him down all the time while Skyfire stopped and produced a continuous stimulation at the top of the valve, his mind was scrambled with pleasure. Skyfire had to note how mesmerizing Perceptor's face was at the moment: torn in immense pleasure caused by him. Rubbing Perceptor's hand still in his grasp against his cheek, Skyfire cooed.

"You are so beautiful."

Skyfire began to thrust gently. But as Perceptor was above him, thrusting was not easy and Perceptor did not seem to be able to dominate this session. Although it was awesome seeing Perceptor writhe above him, Skyfire wanted it harder and faster.

Maybe Skyfire asked Perceptor about changing position, but both of them were not having coherent thoughts. Just wanting more out of it, Skyfire rolled them around, plopping Perceptor on the berth. Perceptor did seem to notice the change, but still he did not say anything, only moaning and writhing against Skyfire as Skyfire pounded.

It did not take them long to reach overload. It was hard to tell if Skyfire released his fluids first or Perceptor clenched tightly first. However, it was almost simultaneous. Skyfire roared in his deepest desires and Perceptor clung onto Skyfire as if he was afraid to let him go. Although Perceptor did not dent Skyfire, he definitely clawed some paint off. Skyfire's transfluid shot off and filled Perceptor's tank and overflowed. The silvery fluid stained both of their pelvis and thighs.

With a grunt, Skyfire managed to pull himself out before he slumped on top of Perceptor. Perceptor was in recharge already, and with a faint grin, Skyfire fell into recharge.

When they saw the crew members of the Ark giving them weird glances or avoiding contact with them, they knew they were loud in their lovemaking. Soon, they invented a new soundproof system for their quarters.