Jace, the cockblocker

Afternoon

Third Person POV
After a very exhausting morning, Alec found himself eager to be controlled by his master. "Alexander, you look exhausted," Magnus smirked. "My mother was giving me a lecture about how I wasn't turning my work in time because I've been too busy with you," Alec admitted.
"I think you've been doing the exact opposite of that"
"I know, babe. My master will take care of me now"
Magnus grinned and gently dragged Alec to the bedroom. "Strip!" Magnus growled. As Alec and Magnus both got comfortable, neither of them heard the front door open nor the sound of footsteps in the living room nor the creaking of the master bedroom door open. "You can come now!" Magnus yelled. "Hey guys! What's-" Jace's voice spoke, then a scream came out. "JACE!" Alec growled, trying to break free of the bondages. Magnus didn't care as blue sparks came from his hand. "JONATHAN HERONDALE, YOU HAVE TEN SECONDS TO LEAVE, OR I SWEAR TO GOD, I'LL TURN YOU INTO A DUCK!!!!!!" Magnus growled. Jace yelped in fear and ran out of the loft as fast as he could. "That was," Alec gasped. "Amazing, I know," Magnus finished.