Constant Vigilance
"No!" Misa screams, and actually CLINGS to L. L looks like he won't be objecting anytime soon, so Raito disregards the other boy temporarily.
"Misa, please be reasonable."
"It-It can't be! Misa-Misa won't let it!" She starts wailing even more loudly. L has allowed himself a small, petrified smile fairly oozing perversion. Misa shifts a little in her distress, apparently not caring that her breasts are pressed up against L's arm.
Raito would roll his eyes, but doesn't. That would probably only antagonize her further. "Misa, please..."
"Ryuuzaki!" She shakes the wide-eyed boy furiously, "Change the law!"
"I'm afraid I can't, Misa." L says a little too smugly. He sends Raito a wide-eyed look, somehow conveying, 'You are so not getting any.'
"Yes, you can!" Misa falters, and weeps into his chest, "Make that stupid law change! Misa-Misa's only a few years older anyways!"
"Be that as it may," L tries to reason with the almost hysterical girl, "Raito-kun cannot take part in any sexual activity until his eighteenth birthday."
Misa bawls. "PLEASE, RYUUZAKI!"
For the first time in his life, Riato appreciates the legal system. L nibbles on his thumbnail in thought, sending Misa another uncertain look.
A decidedly evil glint enters his eyes. Raito starts mentally swearing in every language he knows.
"Of course," L coughs, "If I was there to supervise..."
Misa tackles him before he can properly finish his sentence. "Oh, Ryuuzaki!" She yells ecstatically through the bear hug she's giving him, "You pervert!" She even kisses him on the cheek. L cackles. Misa giggles.
Raito despairs.