Cas didn't even realize that he was doing it.
Halloween meant loads of candy lying around the bunker lollipops, chocolate, mini pies that dean had found somewhere.
Sam couldn't even bring himself to be surprised when he found a bag of jelly babies in the medicine cabinet on the wall of the bathroom.
As it turned out, Castiel had quite the sweet tooth, one that almost matched Dean's. Sam didn't mind really -Cas deserved it after all. He'd been through a lot, and besides, Sam really liked the sugary week taste of Castiel's lips when he kissed him.
Sam, however, didn't realized how compromised he could be by a damn lollipop.
It wasn't enough that Cas couldn't eat them the normal way, just holding it in his mouth and sucking on it, no -he had to take it out and curl his tongue around it, hold it right between his lips and suck on it.
And it seemed like he only ate them when it was more than just Sam in the room.
Needless to say, Sam had been suppressing a boner for nearly a month now, swearing on a stack of bibles that Dean's "Halloween means candy ALL MONTH" tradition would be the death of him.
The were all in the war room, sifting through a pile of old texts that pertained to their most recent case. Dean was munching on a mini apple pie, and Cas was noisily sucking on a blue Tootsie pop. Sam was trying to focus on anything but the throbbing in his jeans.
Kevin was reading aloud a part of the angel table, when Sam felt a sock covered foot run up the inside of his left leg, toes wiggling as Castiel's foot touched Sam's crotch. Sam shot a look to his boyfriend, who was staring at Kevin, listening intently -doing his best to look innocent.
hat wasn't so innocent was the way he was currently holding the lollipop in his mouth -rolling it around on the inside of his lips, the soft pink skin coated in blue sugar, tonguing it exactly how he did Sam's cock. Sam suppressed a groan as Cas ran his toes along the outline of his erection, opening his legs wider and feeling himself get wet. Cas, for the briefest of seconds, turned to Sam and winked at him, flashing a wide, blue stained grin at him before turning back to dean.
Sam lasted about five more seconds before he hauled himself up from the chair and scooped up cas, throwing him over his shoulders. Dean began to call out, but Sam stopped him with a loud, "We'll talk about it later."
The last Dean saw of them that afternoon was Cas's mischievous smile going around the corner towards sam's bedroom.
THE END