French Kiss
Probably the most famous kiss there is, the French kiss is an open-mouthed kiss where one person's tongue touches the other person's tongue. Also called a "tongue kiss," the French kiss easy enough to execute, but it can take years to master.
Their first kiss is not one of love. It is not one of gentleness and kindness, but rather of needy breathlessness.
It is after a long day of searching for the feather for the young princess, when they return together to their current home, both exhausted. Fai strips his shirt from his body, revealing his flesh littered with black and blue bruises. Turning on the water for a shower, he sighs and gingerly presses a particularly painful wound on his abdomen. Suddenly he gasps upon noticing Kurogane standing behind him, reflected in the mirror. "Don't sneak up on me like that," the mage chides, but Kurogane says nothing. The taller man approaches slowly, his red eyes holding Fai's suspicious gaze as the blond backs into the sink. "Wh-what?"
Kurogane takes Fai's face in his hands and leans down to kiss him. Fai's eyes widen then close, and he brings his arms up to wrap around Kurogane's shoulders as a shudder travels down his spine. His mouth opens in a quiet moan, and Kurogane slips in his tongue, letting it do the talking for him. Fai pulls away just long enough to take a shuddering breath, and then Kurogane is kissing his jaw, his chest, his stomach…
And then Fai shoves him away, breathing heavily with a look of fear in his wide eyes. "S-sorry…" he mumbles, staring at his feet, and he starts to push past Kurogane toward the door but is caught by the ninja.
"It's fine," Kurogane says gruffly. A sigh escapes his lips, and he leans his head against Fai's shoulder. "You could have died today, you know," he mutters, tracing the still darkening bruises with his finger. "Don't worry me like that."
Fai smiles and lifts Kurogane's head, brushing his finger along his cheek. "I'm sorry," he says, and their second kiss is one of love.