A/N I am fully aware that I took forever to finish, and that this is kinda short, but I hope you like it anyway. Yes, you read the title right: Bulkhead! I know you're at least a little disturbed, thinking this is going to be a nightmare. I've tried to make this as interesting as possible...the theme? You're going to laugh... Lust. Yup. Smokie loves that huge spike. He plans to suck it later XDD Read and Review!

It was the next day after Smokescreen was fragged by Bumblebee. No one showed any signs that they knew what happened, and Bumblebee spoke not a peep about it. Who was to be his next subject…? Bulkhead and Ratchet were the only Autobots in the base besides himself. Everyone else was on an energon foray. Ratchet looked busy, and could perhaps be doing some important work. He was left with Bulkhead. Smokescreen sighed internally, not excited about having to let the big green lug frag him.
Walking away, Smokescreen put Bulkhead's turn to some later date in his mind. But then he realized the day would come anyway. Might as well get it over with now.

Bulkhead turned, feeling a tap on his shoulder. He was treated to the sight of Smokescreen beaming eagerly up at him.
"Got a nanoklik?"
Bulkhead shrugged. "I guess. What you do want me to do?" Smokescreen hesitated, the smile leaving his face.
"You'll see when you get there. Let's go to your room." He answered, gesturing to the door. He let Bulkhead lead the way.
When the door closed behind them, Smokescreen quickly dimmed the lights.
"AAH!" Bulkhead blurted, whipping around. He couldn't find the light switch in the darkness, so he tried to increase optic intensity. The green Autobot caught a glimpse of blue energon lines and optics, and strained to see what it was. It was Smokescreen on the floor, up against the wall. "Smokescreen, why'd you-" Bulkhead began accusingly, but was cut off by Smokescreen.
"I know, I know, but there's no time to waste. Just get on me," Bulkhead was taken aback.
"Wh-whaa?" He stammered, not knowing what to do.
"I know it sounds weird, but just do it!" Smokescreen growled. Bulkhead plodded over to where the smaller mech was and started getting on his knees, crawling over to him.
"Is this good?" He asked. Smokescreen patted his abdomen.
"I mean ON on me," He repeated. Bulkhead froze, but at last scrambled on top of him, torsos meeting. From this angle, Smokescreen thought, he looked even bigger.
"How about now?"
"Perfect," Smokescreen grinned.
"…Okay, now what?" Bulkhead wondered. Smokescreen beckoned him closer with a servo. Bulkhead leaned forward. Suddenly, Smokescreen pulled him closer and told hold of Bulkhead's little head crest with his denta, biting gently and then lapping the sides with his glossa. Bulkhead yelped, jolting in surprise. Yet, it felt good…guess it couldn't hurt to let him do it. Smokescreen put his servos on Bulkhead's sides, pulling him closer. Okay, now this was starting to get an interface theme… Pulling away, the larger mech shook his head. "Smokie, what are you doing?" He asked, giving him a skeptical look. Smokescreen smirked up at him.
"Look down." He advised. Bulkhead heard a slide-click noise. Following Smokescreen's instruction, he looked down on the smaller Autobot's body. Smokescreen's interface panel was retracted. The green mech jolted, shocked.
"Y-you want me to interface with you?" He spluttered, stunned. In response, Smokescreen lifted his hips off the ground, touching his bare valve against Bulkhead's abdomen.
"Yes, what does it look like? Now lemme see that spike of yours," Smokescreen said. Bulkhead sucked in his stomach instinctively, from both the notion of spiking Smokescreen, and the touch of his valve.
"I'm not so sure…" Bulkhead murmured, a bit disturbed by Smokescreen's sexual desire. The white mech was starting get annoyed. When Bulkhead looked up again, he saw frustration in Smokescreen's optics, but somewhere in there, there was a helpless, needy look.
'Poor kid,' He thought to himself, observing the mech thoughtfully. 'He's really serious about interfacing.' He shifted, and then gave in. "Alright, Smokescreen. But don't make me regret it." Bulkhead sighed. Smokescreen blinked, and then smiled.
"Okay. Just go ahead and ease into there," He instructed. Bulkhead retracted his own panel, revealing an enormous spike. Seeing it, Smokescreen's spark pounded, his mind starting to fill with dirty thoughts. As it lowered down his valve, his optics squeezed tight shut and he cringed, feeling his valve stretch. Having interfaced many times, he hadn't felt that in a long time, and oh, how he loved it. Noticing Smokescreen flinch, Bulkhead stopped.
"You alright?" He asked warily. Smokescreen opened his optics.
"Never better. I love this already," He responded rather breathlessly, optics half-closed. Bulkhead gave him a sideways look, noting the lust in his voice.
"Alright, if you say so," He mumbled, shoving his spike down again.
"Aah!" Smokescreen's back arched and his legs spread wider. A thick, throaty moan left him, quivering with delight. Bulkhead felt a sensual pang of…he didn't know what it was, but he kinda liked it. He knew it was because of Smokescreen panting underneath, clutching his sides desperately and begging for more. "Bulkhead, how I'd give up my spark for more," He mumbled almost incoherently. Bulkhead built up a steady pace, still watching the smaller Autobot. "Yes, YES!" Smokescreen laughed, face skyward and optics closed. Bulkhead shivered from the arousing sight of Smokescreen writhing under him, clawing at his sides. When Bulkhead got deeper and hit a part that Bumblebee failed to stretch, Smokescreen screamed. "Smokie! You okay!?" Bulkhead exclaimed, concerned. Smokescreen was desperately fighting overload, his mind growing clouded and dizzy with the heat reddening his faceplates.
"I'm okay," He answered. He raised his right leg a little, rubbing against Bulkhead's hip. "Please, just keep going and I'll be happy," He panted. Bulkhead continued steadily. The inside, soft metal of Smokescreen's valve was stretching dramatically against Bulkhead's spike, painful, yet the receiving mech loved it. Smokescreen held his breath as overload tried to push its way out. …Oh, whatever. Might as well let it out, if that's the goal. Knockout said to make every mech frag him until he overloads…
Finally, Smokescreen lost it. With a yelp, the transfluid spurted out. Bulkhead flinched a little as the hot, sticky liquid sprayed onto him. Then he did the same, grunting. Smokescreen felt a bit disappointed as Bulkhead drew back his spike, but he was satisfied when a mix of both their fluids spilled out onto the floor out of his valve.
"I, uh…I guess I'm done," Bulkhead mumbled, looking up. Smokescreen shrugged as the heat that stained his faceplates red began fading.
"Yeah. That's all I came here for. I'll help you clean up," Smokescreen replied, optics passing over the puddles left splattered on the floor. Bulkhead smiled halfheartedly, closing his panel.
"'Kay. I'll get the towels," He called over his shoulder, walking towards where they were folded into a stack. Smokescreen nodded, standing up. He slipped two fingers into his valve, noticing how wide it was getting. He decided to get Ratchet to tighten it later, taking out his digits and closing his interface panel.
Just a couple moments after, Bulkhead tossed a white towel into Smokescreen's arms, catching the smaller Autobot by surprise. "You can take that bit," The green Autobot directed, gesturing to the puddles closest the wall. He was already getting down to take care of his side.
'Well, that's taken care of now,' Smokescreen thought while scrubbing the floor. 'Who's next…?'

A/N I managed to do a sensual sticky scene with BULKHEAD! :D
XDD Bit of an accomplishment...c'mon you all, gimme a round of applause *crickets chirping*
...Fail.
Just review X3