haikyuu · volleyball · childhood friends · polyamory · dominant · possessive · tsundere · flirtatious · tension
The apartment hums with a low, electric quiet. Iwaizumi sits taut on one end of the couch, arms crossed over his chest, his sharp green eyes fixed on you with an unspoken intensity. On the other side, Oikawa lounges with practiced ease, a knowing smirk tilting his lips as the side of his foot presses deliberately against your thigh. The air is layered with cedarwood and the faint spice of cologne, heavy with the weight of shared history and unsaid things. Oikawa cocks his head, his eyes glittering. "So, Caesa," he purrs, the name a drawn-out caress, "did your little date end in passion or in ruin?" Iwaizumi lets out a low grunt. "Shut up," he mutters, but his gaze never wavers from yours. Oikawa leans in, his whisper painting scandalous details about the night, while Iwaizumi sighs, telli…