5 Seconds of Summer Smut

Luke

"I have to go on stage soon," Luke mumbled against your lips.

"I know," you said back, smirking a little into the kiss. He slid his tongue into your mouth, tilting his head to the side and deepening the kiss as his tongue roamed your entire mouth.
"PDA!! Get a room!!" You heard Calum yell at the two of you, pulling you away from Luke, giggling.
"So nasty!" Calum said playfully, setting his earpiece in place, grinning and walking towards Michael and Ashton.
"He wanted us to go get a room?" you smiled cheekily at Luke.
"Babe..." He said, not following you despite the fact you were pulling on his arm. "We have to be on in 5 minutes."
"I only 2," I smirked, and he reluctantly went along with you as you pulled his arm and snuck off to a supply closet nearby, shutting the door.
The only light was what came through the small window at the top of the door and Luke was looking at you in anticipation.
You backed out of the light, Luke following you as you took your shirt off.
"Where are you?" Luke asked quietly. You reached out blindly and grabbed his shoulders, pulling him to you.
He immediately crashed his lips onto yours, his hands moving to your bare waist and roaming over your body. You slid your hands down his chest and he reached for your zipper but you stopped him. 
"What--?" Luke asked.
"I'm way too loud for this," you laughed to yourself. You grabbed the belt loops of his jeans, pulling him closer to you. You moved your hands to the zipper of his jeans, zipping them down. He moved his hands over your breasts, groping them slightly, but you pushed them away, making him groan a little.
"Later tonight babe," you said, kissing his cheek softly and yanking his jeans down, dropping to your knees in front of him.
You looked up at Luke innocently as you watched his growing bulge right in front of you. You tugged his boxers down, putting your hand over his dick, rubbing it slightly.
You kissed the tip, and Luke groaned in anticipation. "Stop teasing, (Y/N)!" He took your head and pushed your mouth over it, and you pushed it as far into your mouth as it would go. You put your hand over the small part that wasn't in your mouth and rubbed it as you began to suck, hollowing your cheeks and Luke groaned, leaning his head back.
"Damn... Yes..." he groaned, biting his lip and leaning his head back. He tangled his fingers in your hair as you continued to suck and rub, swirling your tongue around him, causing him to moan your name in return. You felt him begin to tense up a bit in your mouth and you prepared for him to finish.
"Oh.. Oh God... (Y/N) I'm really close." He groaned, tugging your hair slightly. A second later he released the warm liquid into your mouth and you swallowed it all like a good girl and he grabbed the wall next to you for support. You pulled away, standing up and helping him by pulling his boxers and jeans back up.
"Luke!" Suddenly Calum bursted in and you scrambled frantically to grab your shirt as Luke buttoned up his jeans.
"Oh my God, you can't be serious," Calum groaned, turning away while you pulled your shirt back over your head. "This is NOT what I meant when I said to get a room!"
"Then don't say it, Calum," you sassed back to him, smirking as Luke looked as though he would die of embarrassment.
"Oh um, Luke?" Calum looked like he was trying really hard not to laugh. "Your headset was on so... Everyone in the audience tonight knows what you two were doing in here."
"Shit," he mumbled, looking panicked. You couldn't help but laugh as you imagined all the girls in the crowd probably fangirling over Luke's orgasm noises. They probably had a few orgasms themselves.
"It's okay, Luke," you said. "They probably enjoyed it anyways. Now hurry up, you have to be on stage in a minute!"
You pushed Luke along as he looked as though he was contemplating jumping off the balcony of the dressing room. 
"Good luck babe!" You yelled to him as he walked towards the stage, looking worried. Calum laughed and patted his shoulder reassuringly. You shook your head and sat and waited for the show to begin.