Sonic could barely control his breathing as Shadow ploughed into him, his boyfriend's long, girthy black cock stretching his ass wide open as it bored into his depths, ready to unleash a flood of thick, gooey spunk that would mark anew Shadow's blue bitch as his alone. He was on his knees, with his upper body laid down on Shadow's mattress, exposing his ass so that Shadow could mount him. While they usually preferred to see each other's faces, Sonic had finally convinced Shadow to help him explore his curiosity about doggystyle. 
"Oh please, f-fuck me, fuck me Shadow! Y-yes!" Sonic cried, his entire body aching, tired, and shaking in pleasure. Shadow simply chuckled, his gruff, masculine voice sent shivers down the blue hedgehog's spine and twitches along his smaller cock.

"You're so tight, pet. I could fuck you all day. In fact, I think I will." The ebony hedgehog grunted out as he bucked his hips wildly, pounding his blue bitch to the beat of his heavy balls slapping against Sonic's own. The blue hedgehog writhed against the bed, his fuckhole clenching around Shadow's huge prick, massaging it as it slammed into his prostate. The ebony hedgehog growled in pleasure and gave Sonic's ass a hard spank. 
"You like that, bitch?" Shadow asked as he spanked the blue ass again, earning moans from Sonic as he kept thrusting.
"F-fuck! Punish me Shadow, I-I've been bad!" Sonic moaned, his own cock quivering.

Shadow pulled back his thick manhood, right to the head of his dick, slick with pre-cum, then slammed back in to the hilt, drawing a manic cry from Sonic as Shadow rammed deep into his ass. The blue hedgehog bit back his yelp as he felt a sudden burst of heat inside him. Without any warning, Shadow came, his cock shooting rope after rope of fresh, hot jizz deep into the blue hedgehog's well-used ass. When Shadow was done, he gave Sonic's buttcheek one last spank, laughing as he did so.
"Shadow!" Sonic groaned in feigned annoyance.
"You could've warned me that you were about to cum!" This just made Shadow chuckle more.
"What, and miss out on that cute little yelp you make when my creamy load takes you by surprise?"

Sonic blushed furiously, hiding his still aroused face as Shadow began to pull his still semi-erect, spunk coated dick out of Sonic's now gaping hole. Once he did, a trickle of the ebony hedgehog's cum began to leak down Sonic's legs, much to Shadow's amusement. Before the blue hedgehog could complain, he reached his hand down between those blue legs and gripped Sonic's cock. Then, Shadow began to stroke the smaller member, lovingly massaging it in his palm until the blue hedgehog began to squeal.
"Sh-shads!" He cried as his orgasm hit, strings of his much smaller load costing Shadow's hand as he jerked Sonic through his climax. 

Eventually though, the tension left the blue blur's body as he slumped to properly lie down on the bed, every muscle blissfully sore.
"Thanks Shadow." He mumbled through the mattress. The ebony hedgehog simply smiled as he grabbed their clean up towel from the floor and wiped his hands.
"You're welcome. Thank you for having such a fuckable rear end." He threw the towel onto the bed for Sonic as he made his way to the door.
"You clean up in here, and I'll get us something nice." He instructed, leaving Sonic alone in his bedroom, struggling to sit up in the puddle of Shadow's and his semen.

Meanwhile in the kitchen, Shadow was stood hunched over the kitchen scales, trying to perfectly measure out two teaspoons of coffee from his 8 oz bag. Once he was satisfied he had it right, he poured the ground coffee beans into his cafetiere before turning to the sink, ready to measure out the 12 fl oz of water he'd need. Rouge always mocked him for taking his coffee so seriously, but for Shadow coffee was his favourite hobby, an art to be perfected, and a science to be mastered. Therefore, exact measurements were a must.
Need to get it just right. Shadow thought as he worked. Once everything was done Shadow stood by his counter, pushing the cafetiere handle up and down as he let his mind wander into daydream. 

When they had first started dating, Sonic couldn't stand what Shadow considered proper coffee.

"One choca-mocha caramel drizzle latte please." Sonic asked the barista, at which Shadow scoffed.
"I thought you were getting coffee?" The black hedgehog asked. Sonic put his hands on his waist.
"I am, I never get cream based. It's got coffee in it."
"On the side of a pound of sugar. So basic."

Shadow meanwhile, wouldn't have anything less than pure, 100% black coffee, strong enough to kill.

"Whoa Shads, what'cha got there? Oil?" The blue blur asked as he sat down I'm the chair opposite Shadow, slightly unnerved by the pitch black drink in his cup.
"Coffee."
"With...?"
"More coffee." Sonic stood, slightly alarmed.
"Geez Shadow! Drinking it that strong will kill you! Wait here." He zipped off.
"I don't need your-" before he could finish, sonic had added some milk and sugar to his coffee. He looked appalled.
"Just try it. Please!?" Sighing in defeat, Shadow gave it a sip.
"It's... not terrible."

They had eventually come to a compromise, with Shadow finding just the right balance of coffee, sugar, milk, and water for the perfect cup of coffee. Reaching into the cupboard above his head, he pulled out two cream mugs, identical in every way except the black and blue S on them. Once the cups were ready, Shadow picked them up, careful not to burn his thumbs, and brought them in to Sonic. The blue hedgehog was sat down on the freshly made bed, the cum coated sheets now gone. Shadow walked right up to his boyfriend and extended his left arm, handing his coffee over. 
"Thanks Shads," he took a sip, "perfect as usual." Shadow smiled as he sat down next to Sonic.
"Just like you."