The Omega could hardly believe it, Castiel had offered up his body to Dean. It was a rare event in the world of traditional Alpha and Omega couples and Dean knew that for a fact. He'd often do internet searches on statistics and articles about the many types of interactions between their sexes.

When Cas was at work and Grace was napping, Dean watched a lot of porn and he had found a free site with all sorts of amateur videos. There were a few with the Omega topping the Alpha and Dean found those fascinating. His husband was much better looking than anyone in those videos. Dean got off to thoughts of fucking his Alpha's pristine, little hole and got off like a rocket right in Castiel's office chair.

It was Dean's dirty little secret at least for awhile until Cas found jizz sprayed over the keyboard and Dean forgot to wipe his browser history The Alpha watched some of the Omega topping an Alpha videos. He found them very interesting, exciting even. Like the good husband he was, Cas didn't say a word and let Dean have his fantasies.

Now here they were, Castiel lying there looking up at Dean with a combination of lust and excitement in his big, blue eyes, legs spread and Dean's fattening cock leaking an obscene amount of pre-cum over his mate's hard, flat, firm abdomen.

The teen dreamed of fucking Cas silly but when faced with the prospect, Dean felt a little aprehensive. He knew the mechanics behind it all but there was a possibility of hurting Cas and Dean had no experience.

Castiel waited for Dean to say something but the Omega had stayed quiet a full minute which felt like an eternity. Dean dipped his head down and stole a kiss. Castiel suddenly felt like an awkward teen all over again. Dean ate it right up, his lover's blush only made the Omega feel bolder, more in control.

"I wanna eat your ass."

That snapped Cas out of his sex stupor, "Tomorrow, I need to prepare. Remember, we had a big meal a few hours ago."

"So, you just took a shower. Come on babe, let me have a lick."

"I have this planned out, my meals, cleansing, exercise, liquids…"

Dean growled, "Cock tease. Fine, if I can't go there tonight then you promise tomorrow?"

Castiel nodded and answered sincerely, "I promise. I want this Dean. When I was kept captive in Rouen Manor, all I could think about was you and of course, Grace. I realized I hadn't given everything I had to give to the man I love and if I got out of there alive I wanted you to take it all, every bit of me."

The tension left Dean's body, all except his cock, "I get it…ok, tomorrow but tonight I'm going to hotdog the hell out of you." With that, Dean flipped Cas on his belly before the man had a chance to react. Dean spread his husband's perky cheeks, spit on his hole and then the Omega humped his crack until Cas heard his mate grunting followed by warm cum droplets fall over his back.

Dean rolled off, a big smile on his face, "I can't fuckin' wait until tomorrow." He slapped his Alpha on the ass, "perfect."

It left Castiel wondering what sort of Alpha Dean would have been if nature had taken him down a different path. Cas found just the thought of it both frightening and exciting as hell.

….

Cas went on his early morning run as usual, down the long stretches of country road. Except for a few icy spots the way was clear. It was a gorgeous morning and this private time gave him the chance to clear his mind and think of nothing else but the journey ahead.

Dean had been manhandling him since they both got up. The teen couldn't hide his horniness for the piece of ass promised. Cas had woken to his mate furiously masturbating.

"If I were the Omega and Dean the Alpha I would be on my knees…ass in the air… my pussy pummeled constantly. Would Dean keep me barefoot and pregnant? Me, a loving, willing sex toy for my beautiful Alpha's pleasure…"

Cas slipped on a patch of black ice, sending him to the pavement. Luckily the only damage was to his hands that were scraped up and his ego.

…..

Per Castiel's request, Dean had made his husband oatmeal for breakfast. The Omega loaded it with raisins, toasted walnuts, brown sugar and flax sprinkled on top. "This should be enough colon blow to clean out a grizzly bear. Ugh, why does butt fucking involve so much prep work?"

In limped a sweaty Castiel fresh from his run. The Alpha had left a trail of clothing starting at the front hallway all the way to the kitchen and was now clad in damp, clingy white boxers and socks. He opened the fridge and snagged a small bottle of kiefer which he gulped right down.

The damp, white boxers did little to hide Cas' muscular ass. Dean licked his lips and squeezed his dick discretely, "Totally worth the prep work."

…

Castiel kept his head down as he shoveled the oatmeal into his mouth followed by sips of coffee. He was avoiding Dean's hungry, sex addled gaze. The teen couldn't take his eyes off Castiel and he kept making dirty little sounds under his breath. It was as if Dean couldn't help it. When the Omega let out a low, rumbling growl, Cas dropped his spoon in the empty bowl, pushed it aside and then bravely looked into the blown eyes of the predator sitting across from him.

He growled right back at Dean then said, "Settle down. This will happen when I evacuate my bowels and use the fleet enema…which will be later."

Dean stood and leaned forward, palms on the table, "I'll fuck you in the shower right now and take my chances."

"Until I'm on my knees this will go at my pace, do you think men walk around with their rectum prepped for surprise anal?"

The teen left in a huff and a moment later Castiel heard the front door open and slam shut. He watched from the kitchen window as Dean hopped in the Impala and left.

…

Dean parked Baby in front of ABO Leather & Lace located in a strip mall. He'd been there with Cas but never alone. As he entered, the Omega almost slammed into a meek little woman, clutching a black shopping bag to her chest. Dean wondered what kinds of naughty things were in it.

"Hmmm, she's a mouse that turns into a tiger."

A tatted up young Beta called out to him, "Kid, you got any ID?"

Dean pulled out one of his many drivers' licenses, one where he was eighteen, and handed it to guy, "Here you go chief."

The Beta glanced from the photo on the license then to freckle faced Dean. He handed it back, deciding it wasn't worth the hassle. It's not like they sold drugs or firearms. "So what can I do for you, Mr. Page?"

"Act cool, don't fuck this up. You…are…the…man!" He flashed the Beta a confident smile and waved to a shelf full of products, "I need lube."

"What does an Omega need with lube?" He gave the good looking kid the up and down, "I mean, aren't you guys self lubricating? I've never been…"

Dean interrupted the rude Beta, "What do you care what I need lube for? Besides, it's none of your friggin' business. Keep up the charm and I'm sure you'll bag an Omega someday, asshole."

Taken aback by the mouthy, confrontational Omega, Mister Tattoo backed down immediately and went into sales clerk mode. "Sorry, you're right; it's none of my business. So are you looking for flavored or unflavored?"

"Um…flavored, something nice like strawberry and I want the good stuff." The teen folded his arms to show how absolutely serious he was about quality lube.

Fifteen minutes later, Dean left with a bottle of Slick Willy brand Mango Madness and Manly brand Strawberry Fields lubricants.

…..

Castiel was on the throne when the text came through.

"Sorry I was a jerk"

"Nothing to forgive. When will you be home?"

"Soon. Everything coming out alright?"

"Eeewww"

"You're one worried about your bowels."

"I love you Dean, see you soon."

"Love you too, babe."

…

The billiard ball shaped liquor store clerk with the sweat face and milky eye examined the ID, "So this says you're twenty one."

Dean set the bottle of wine and the six pack of fancy beer on the counter, "Yup, that's me."

The teen got a little nervous when the Alpha's jowls quivered and as he clenched his jaw. It was a great ID for sure but this man had been around the block and he sure wasn't born yesterday.

Dean pushed the cash toward him, "I'm in a hurry."

Mr. Jowls gave him one last hard look and then took the money and finished the transaction.

Things were working out just fine.

….

"I want it in a heart shaped box with a bow." Dean watched as the overly perky young candy shop clerk filled the little heart with Cas' favorites.

She was into Dean big time. Omega or not, the guy was gorgeous and besides, kids were overrated. Vicky figured it would be worth going childless to hook up permanently with an Omega that tasty.

Dean sighed inwardly, he knew he was a head turner and it was a nice ego boost being the object of most people's desires but sometimes the Omega just wanted to blend in. Cas said it would take wearing body bag to keep strangers from noticing Dean's beauty. Dean had resigned himself to being irresistible.

Vicky handed Dean the box of chocolates and then squeezed her boobs together as discreetly as possible so she didn't look like a big slut that was trying too hard. "So are these for your mom?"

"Nope, my super hot husband."

She deflated like a balloon and finished their transaction quickly.

…

"Last stop, the florist."

Dean was relieved to see an ancient woman behind the counter. She was busy arranging a bouquet. Agnes greeted the young man as soon as he entered.

He read her nametag, "Agnes, I need a gift for my Alpha so I guess something manly."

She pointed her knobby hand toward a large, glossy leafed plant, "You can't go wrong with an iron plant. They are tough and tolerant and need little care. You get a lot of bang for your buck."

Dean looked at the price tag and balked. He had just about blown his wad and only had five dollars left. He rubbed the back of neck and muttered, "It's a little out of my price range."

"Wait here," Agnes shuffled into the back and came out a few minutes later with a baby iron plant, "How much do you have to spend?"

He gave her a sheepish grin, "Five bucks."

She found the flannel clad, angel faced Omega charming and sweet as a peach, just like her own son at that age.

"Perfect, this is exactly five bucks including tax!"

Dean headed home with a car full of every single romantic thing he could think of to seduce his man, because today was a very special day. Topping Castiel would be like Valentine's Day and their anniversary, July forth fireworks and his birthday all rolled into one.

….

Castiel washed his hands thoroughly after the oatmeal made its exit. He felt fully purged. "Now I just have to used this enema…shouldn't be that difficult."

He sat on the edge of the tub and read the directions out loud, "To use the enema, lie down on your left side with your knees bent. Remove the cap from the applicator tip and gently insert the tip into your rectum. Slowly squeeze the bottle to empty the contents into the rectum. For best results, stay lying down and hold in the enema until you feel the urge to have a bowel movement."

Cas assumed the position and followed directions to a T. It was more to be sure everything was pristine for Dean than anything else.

Afterward he took a hot shower, did some pushups to get his sweat glands working, because Dean loved a fresh sweat on Castiel, and then slipped into a silk kimono Scotty had gifted him for his birthday but the Alpha hadn't had the nerve to wear until now.

He heard the rumble of Baby heading up the drive and a few minutes later the front door open and shut. Castiel tried different positions he thought would look sexy and settled on lounging on his side with one leg draped over the other and propped on an elbow. "This will look super sexy."

Dean kicked open the door, shopping bags in each hand. He already had a zipper raking erection going on but when he got a gander at his pretty boy Alpha on the bed wearing a tacky black silk kimono covered in tiny tigers done in metallic tread, the Omega was a goner.

"Whoa, you look super sexy!"

Castiel growled like a tiger and made a claw gesture.

"Mission accomplished."

TBC

A/N- Thanks for being patient, everyone. Good things are worth waiting for.