A/N: I was so dissapointed by this topic. 'Dogs' she said because I hate dogs. But that won't stop me from relating them to yaoi! I mean come on! 'Dogs' and yaoi. It's a no brainer. Oh well. I can safely say that there is a chance you will enjoy this one.

"Len~ Come on out! Your big sis' would like to see you now!" Rin chimed, standing by the locked door.

"I'm not coming out!" the voice from the other side of the door said, "This is embarassing! Why do I have to do it?"

"it's Kaito's birthday," his sister said, "You asked what was a good idea for a birthday present. This is just a little twist on the "I give you myself" thing that couples do."

"I asked for suggestions! I didn't mean for you to force me into wearing this- this...whatever this is!"

"You know what?" Rin said as Len heard the sound of furniture being moved, "If you're not gonna come out, I'm gonna send Kaito in. Wait right there." Her voice was already trailing off as she walked away from the door.

"Rin!" Len yelled, "Rin, come back here!"

Len tried the door but wouldn't open it. Rin had barricaded it. Curse Rin and her unfeminine strength.

Len turned and leaned against the door. He had been changing in the Vocaloid girls' costume room. It was either wear what he was wearing right now or wear girls' clothes. Or wear nothing.

Honestly there wasn't much of a difference between the three.

Len heard footsteps approaching the door.

For a minute Len panicked, running around the room that had no hiding places to offer. Then he realized that the door locked from the inside and calmed down a bit.

Len heard gentle knocking and Kaito's voice, "Len?"

"D-don't come in!" Len stuttered, blushing.

There was a slight pause. Kaito laughed a bit.

"Seems like I don't have much of a choice."

"What do you mean?" Len asked confused.

"He means that he's coming in whether you like it or not!" Len heard Rin say.

"What?" Len exclaimed, "N-no, Kaito you can't!"

"Like he said, he doesn't have much of a choice," Meiko said from the other side of the door.

Before Len could respond, he heard the turning of a key (damn it! Meiko had the keys to all the doors in the house!) and the door was thrown open.

Len caught a glimpse of Meiko and Rin who both pushed Kaito into the room and slammed the door shut. They had the door barricaded again in seconds.

"Ow," Kaito said, getting up from the floor and dusting himself off, "They didn't have to be so rough."

It had happened so fast. Len was stunned the whole time. Only now did he unfreeze himself and turn slowly towards Kaito.

For the first time Kaito got a good look at Len.

He was wearing big floppy pink and yellow dog ears on his head and a pink dog collar. His hair was tied off to the side with a pink ribbon. He had on a yellow cropped top that exposed nearly his entire stomach. It had a single spaghetti strap on the left shoulder and a puffy short sleeve hanging off his right shoulder. There was a pink frilly strap of cloth on his left arm to match the pink frilly detailing and pink ice cream pattern of his top. His short shorts were indeed very short with a yellow belt containing a yellow dog tail. He had on yellow thigh-high socks with pink frills at the top but no shoes.

Len was leaning against the wall, his face a bright shade of red.

He slid to the floor and covered his face with his hands, "Don't...look..."

Kaito smiled a little.

Len was very extremely cute at the moment.

He sat next to Len, "Are you supposed to be a dog?"

Len looked up and pouted, still blushing, "Rin said I'm supposed to be a shota puppy boy," he mumbled.

Kaito chuckled, causing Len to scowl more.

"Geez, why do I always have to wear the weird girly, revealing, 'shota' costumes?" he said annoyed.

Kaito smiled and hugged Len closer, "Because you're so cute. People want to see you in cute clothes."

"Kaito, does 'people' include you?" Len asked.

Kaito smiled brightly, "Of course!"

Len groaned, "Not you too."

"Well, who doesn't want to see their lover looking cute?" Kaito said, leaning down for a kiss.

Len felt Kaito's lips against his and closed his eyes.

Breaking the kiss, Kaito trapped Len against the wall and nipped at his neck, "But I have to say...you're outfit makes you look quite...desirable."

Kaito moved down from Len's neck, trailing kisses along his stomach.

Len squirmed and giggled. Kaito's soft lips brushing against his stomach tickled.

"P-pervert!" Len managed to say between giggle fits.

"Ah, but you are the one who's wearing it," Kaito said, tickling Len's sides and nuzzling his neck.

"I-I was forced into it!" Len exclaimed, laughing harder.

Kaito pressed his lips against Len's again.

He stopped tickling Len and licked his lips instead, asking for permission to enter.

Len opened his mouth slightly to allow Kaito to slip his tongue in.

Kaito pushed Len all the way down on the floor. He unbuttoned Len's pants and slipped his hand down the front of them.

Len moaned, muffled by the kiss, as Kaito rubbed his member.

Kaito slipped his other hand up the thin fabric of Len's top and rubbed teasingly at his nipple.

"Ah!" Len said, breaking the kiss as Kaito rubbed against the tip of his member.

Kaito traveled downward and gently kissed Len's left hip. He removed Len's member and kissed Len's inner right thigh. He was about to take Len's length in his mouth but Len moved away.

Kaito looked at him in surprise, "Len?" he asked a little worried as to what happened.

"U-uh...it's you birthday...and usually the d-dog obeys it's master...so..." Len's face was bright red as he looked at Kaito meaningfully.

"You mean you want to...?" Kaito asked, pleasantly surprised at Len's boldness.

Len nodded and slowly positioned himself between Kaito's legs.

He freed Kaito's member, "As a warning I don't know how good I am," he said.

Kaito looked at Len's face, shaded so brightly red, and at his rump, inadvertently positioned up in the air.

"Don't worry," Kaito said as Len took him in his mouth, "You're more than enough arousing."

Len took as much of Kaito in his mouth as he could and sucked hard. He moved his tongue over various parts of Kaito's length, taking note of how he reacted in order to decide where would be best. He found a spot under Kaito's length that Kaito seemed to particularly enjoy.

He slowly removed the member from his mouth and used his hands to squeeze it hard while he gave a quick lick to the tip. Len moved his mouth down and took one of Kaito's balls in his mouth and sucked.

From an article Len had read on the internet he knew that some guys didn't like this so he looked up briefly to gauge Kaito's reaction.

Kaito hissed lowly, causing Len to pause.

"You don't like it...?" Len asked.

"I like it too much..." Kaito moaned.

He was holding back as much as he could to keep from coming. That was supposed to happen later. With Len.

Len looked confused but he was about to go back to sucking Kaito when he was stopped.

"That's enough, Len. Come here," he said, motioning him to sit on his lap.

Len obeyed and Kaito removed his pants.

Kaito started to fumble about in a nearby table drawer to look for something that could be used as lube. However, Len stopped him, instead bringing his hand into his mouth.

Taken aback, Kaito watched as Len took his fingers in his mouth and sucked on them, moving his tongue around and between them.

"You're very docile today," Kaito remarked, smiling.

Len blushed but continued giving Kaito's fingers the same treatment.

Kaito removed his fingers from Len's mouth and inserted them into Len's entrance.

Len stood on his knees above Kaito and moaned as Kaito used his other hand to squeeze his length.

"Nn..." Len moaned, his eyes begging Kaito be inside him.

Kaito chuckled and removed his fingers. He put his hands on Len's hips and positioned him above his erection.

He gently pushed Len down onto his member, causing Len to call out in pleasure.

Giving a panting, red-faced Len a few moments to get used to the penetration, Kaito began moving his hips into Len.

Len too moved up and down Kaito's member, moaning and making lewd sounds.

Len wrapped his arms around Kaito, "Ah!"

Kaito tightened his grip on Len's hips and pushed him down harder onto his rock-hard erection.

"K-Kaito...I'm going t-to...c-c-come..." Len gasped as Kaito felt him tighten around him.

Kaito drew Len closer and said into his ear huskily, "So am I, Len."

"Ah!" Len called out as both he and Kaito came.

They held on to each other tightly as their orgasm flowed through them.

Completely emptied out, Len pulled off of Kaito and fell on him again tiredly. He rested his head against Kaito's chest and the both of them sat entwined in each other's arms panting for a while.

"Happy birthday, Kaito," Len said, blushing, when he regained breath.

Kaito smiled and kissed the top of Len's head, "Thank you, Len. This was a great birthday present."

Len looked up at Kaito, and blushing even deeper, said softly, "I love you."

Kaito laughed softly, "I love you too, Len, I really love you."

As they rested against each other, Len and Kaito heard 'aw's' and giggles on the other side of the wall.

They both froze as the girls on the other side of the wall shushed each other and ran away.

"...How long do you think they've been there?" Len asked, uncertain whether he wanted to know the answer.

"I don't know..." Kaito said.

"Do you think...they had a...a camera?"

It wasn't impossible.

"I-I don't know," Kaito repeated.

The stared at each other and sighed.

"Damn those female vocaloid yaoi fan girls," Len muttered grumpily.

Kaito smiled and kissed his cheek, "Oh well. It doesn't really matter, does it?"

Len looked at Kaito and smiled back, "No, no it doesn't."

Len reached leaned up and gave Kaito a kiss.

Kaito smiled as their lips touched.

It didn't matter. There had been such great 'birthday fun' after all.