A/N: Here is a second chapter for Lazy Sunday's. I've decided to make these a series of one shots with Alec/Magnus/Jace relationship. I've never done a three person before so we shall see how it goes :)

2.

"I need a shower," Jace wrinkled his nose as he sniffed his shirt.

"No argument there," Alec said, unlocking the door to the apartment.

Jace rolled his eyes and shoved him out of the way so he could walk inside first and froze. Alec noticed and his hand went to the dagger at his belt, coming up behind him.

"What?" He whispered.

"Look," Jace said, pointing to the couch.

Magnus was sprawled out on the couch, his long legs draped over the armrest, his right arm thrown over his face, hair all messed up.

"He fell asleep while he was working again," Alec smiled softly and shook his head.

Jace walked over and carefully took the pen in his hand and set it aside. Magnus stirred a little but didn't wake up. Alec picked up the papers scattered on the coffee table and stacked them into neat files

"Come on, you get the door, I'll get him," Jace said, picking him up and heading for the bedroom.

Alec got the door and pulled the covers back while Jace laid him down and Magnus rolled over, still sleeping.

They went into the bathroom and closed the door, stripping out of their smelly clothes and gear. Alec started the shower as he stepped in and got it to the right temperature as Jace got in behind him.

"You smell terrible," Alec wrinkled his nose as Jace hugged him from behind.

"Like you smell any better," Jace pointed out. He reached around him and grabbed the soap starting to wash his back for him.

"At least Magnus won't kill us for getting the bed all smelly again," Jace added.

"But he'll kill us if we use his shampoo," Alec reminded.

"It's the only thing that makes the smell go away," Jace frowned.

"Remember the last time you used all of his shampoo?" Alec asked.

"...Good point," Jace answered, reaching for the other shampoo. "I don't think I can spend another two weeks on the couch."

They finished washing up and stepped out, drying off and leaving their towels around their waists as they quietly went back into the bedroom. Magnus was still sleeping as they got dressed.

"He must've been up all day and all night last night," Alec leaned down and kissed his forehead before following Jace to the kitchen.

Jace sat on the counter while Alec started the coffee pot and looked through the fridge for something to eat.

"We need to make another grocery run when Magnus wakes up," Alec said, closing the fridge door.

"You don't think he forgets to function when we're not here do you?" Jace asked. "I mean...I know he can just magic up food and order take out...but I didn't see any leftover take out boxes or anything."

"You know how he can be when he gets engrossed in his work," Alec shrugged.

He handed Jace a cup of coffee and drank his own. Jace nodded.

"I just...you know...worry," Jace mumbled.

"Aw. Jace Lightwood has a heart," Alec teased, walking over.

Jace rolled his eyes. "Don't tell him I said that."

"Tell him what? That you have a heart?" Alec smiled, kissing his cheek. "That you care about his wellbeing?" he kissed his other cheek."That you're worried about his health?"

He set his coffee cup down and kissed him. Jace leaned in and wrapped his legs around his waist. Alec picked Jace up off the counter and carried him over to the counter where he sat down keeping Jace in his lap.

"We got a few hours to kill while Magnus sleeps," Jace ground their hips together and smirked as Alec groaned softly.

"What do you propose we do?" Alec asked.

Jace only smirked a little more and suddenly twisted so they landed on to the floor with Alec on the bottom.

"Stay," Jace told him.

Alec nodded and watched him get up and go over to one of the drawers in the desk by the door and grab the bottle of lube they kept in there.

"Almost empty," Jace noted as he walked back over.

He pulled Alec's sweats off and got between his legs so they rest on his shoulders and coated his fingers in lube. Alec clenched at the first finger and slowly relaxed as Jace thrust it slowly working in a second to stretch him.

He moaned as Jace wrapped a hand around his length and started to stroke him off slowly.

"Fuck, you tease," he moaned.

"Magnus taught me this one," Jace smiled innocently as he curled his fingers against Alec's prostate.

Anything Alec was going to say got cut off as he head fell back and he whimpered pushing back against his fingers. Jace did it a couple more times before pulling his fingers out and coating his length and thrusting in.

Alec swore and grabbed the coffee table. "Give a guy a little warning next time," he panted.

Jace rolled his eyes and held his legs as he started thrusting, making sure to aim for his prostate every other thrust.

"Such a demanding little bottom aren't you?" Jace huffed.

"Shut up," Alec moaned and clenched around him, making Jace stutter a little in his thrust. He sat up on his elbows and used on hand to pull Jace down for a kiss by his shirt.

Jace braced one hand on the carpet behind Alec's head and picked up the pace.

Alec moaned loudly into the kiss as he came between them and Jace pulled out, stroking himself off and coming all over Alec's stomach.

Alec panted and wrinkled his nose at the mess on his stomach and grabbed some tissues to clean himself up.

"Did you two have sex on the floor again?" Magnus yawned.

He was leaning in the bedroom doorway, rubbing his eyes.

"We didn't want to wake you," Alec said, pulling his sweats on. "You looked so peaceful."

"Maybe I wanted to watch," Magnus pouted.

Alec rolled his eyes as Jace stood up and walked over to him. "Don't worry, we'll make it up to you later," Jace said, giving him a kiss.