Title: An Equation For Love

Blood Type: Oh, how I wish it were Percoset.

Fandom: Gravitation

Disclaimer: I think it should be fairly obvious that I don't own Gravitation as I have minimal artistic skills.

Warnings: Some pelvic thrusting. That's about it.

Author's Notes: An explanation: Hawk Clowd and I were watching VH1. The deal was that I had to use certain lyrics from KISS' "Put the X in Sex" in a fic for her, and she would reciprocate. As you can see, it turned into something more, and slightly different from what I thought it was going to be.

"Lust?" Tatsuha scoffed at the very notion. How utterly insane. "Sakuma Ryuichi-sama is love. And love is likea muscle and it makes me want to flex," he stated, thrusting his pelvis forward in a short, smooth motion.

Mika blanched visibly. "Ryuichi is thirty-one years old –"

"And has ass for days," Tatsuha finished for her.

That was enough. Mika narrowed her eyes at her youngest brother. This was all too reminiscent of Eiri's relationship with Shuichi. A relationship that upset her husband greatly, which in turn considerably upset her life when Tohma was forced to intercede on behalf of his employees. "When did you become so common," she snapped, grinding out her cigarette and not really wanting an answer.

"My love for Sakuma Ryuichi-sama is not common," Tatsuha defended emphatically. "He's perfect! The best vocalist in all of Japan! The world!"

"You realize you sound like some kind of creepy stalker, don't you," Mika stated dryly as she examined the bright red color adorning her nails, running an appraising thumb over the polish.

"I'm not stalking him!"

"Oh? I've yet to hear you say what it is about Ryuichi that you love. Sure, you can love someone for their accomplishments, but it's not real. What would happen to your love if he fell from the charts?" She was greeted with a stunned silence, a mixture of horror and disbelief settling into her younger brother's face. "You might want to concentrate on how he makes you feel when you ignore his career and look at the person underneath the glamour," she said, lighting another cigarette. "In other words, stop thinking with your dick." Mika inhaled sharply, enjoying the sensation of the smoke curling through her lungs.

Suddenly, she realized, this had become a parallel to her relationship with her Tohma. She absently flicked ashes from her cigarette onto the floor earning her a glare from the waitress, which she ignored. "So, tell me: what is it about him that makes you love him," she murmured.

Tohma had been a marriage of convenience: an easy way to avoid being a temple wife for the rest of her life. The opportunity had risen and she had seized it with both hands. Tohma had known this, despite her best efforts to hide it from him. And still he had been kind to her, gifting her with cars, clothes and jewelry. They were married before she realized that she didn't feel empty because he was trying to buy her affection – it was that lonely look in his eyes whenever he did. That haunted quality that spoke volumes of his desire to please her.

"I'm not thinking with my dick! I just...Sakuma-sama...his music..."

She had fallen in love with Tohma slowly and now at the galas they attended together, she no longer maintained a respectable distance when his arm snaked around her waist. She would smile confidently at the people that pressed in on them, their desire to impress the President of N-G Studios almost palpable. This man, who she had married for convenience was now something much, much more. She didn't care if he lost N-G tomorrow. Together, they could overcome any obstacle.

"Oi, aneki! You aren't even listening!"

That much was true. Nor did she particularly care about her brother and his lust object at that moment. Of course, since she had been the one to bring the subject up, the least she could do is see it through to its end. Hypocrisy was not a color that suited her.

"Continue," she murmured with an open gesture.

"It's his voice more than anything, I think. Sakuma-sama sings with his soul, and it shows." Tatsuha eyed his sister thoughtfully, taking in her blank expression. "Anyone who can sing with that much passion and emotion is a person worth knowing," he finished authoritatively.

Mika smiled thoughtfully. Perhaps there was something more to her brother's inane desire to meet Sakuma Ryuichi than she first thought. Maybe...maybe this – well, Tatsuha and Ryuichi – would actually work after all. It wouldn't be so odd, would it? After all, never in a million years would she have thought that Tohma loved her – and even more surprising – that she loved him in return. But yet, he did. And she did.

"...On top of which, as I've already mentioned, he has ass for days!"

"I'll see what I can arrange," she said rolling her eyes. She had more important things on her mind. She had to go home and tell her husband she loved him.