"Yes, professor?" he teases. Though his voice is husky with arousal, his tone is light. He smiles wide as he nuzzles against the underside of Yussa's jaw, pressing beard-rough kisses there before his attention is inevitably drawn back down his lover's body. Yussa takes his cock inch by inch, partially of his own doing as he grinds back against him. Caleb watches hungrily. The press of his own hips is slow but unrelenting, all one slick, smooth slide. Yussa can take it; he can feel how ready he is.

His unsteady breath gets a little louder, stuttering noticeably as Yussa feels out the place they're joined. Slender fingers trace over hot, sensitive, taut skin, and Caleb sees his cock give a stiff twitch, buried more than halfway inside him. They look good together; a contrast of golden brown and red-flushed, all wet and glistening, Yussa's cunt stretched wide at his entrance around the girth of his cock in a way that looks positively obscene to Caleb, but also satisfies some deep, vulgar craving he was previously unaware of.

"Fuck," he breathes, "you are so incredible." His hips give a sharper snap forward to bury the last of his length in the older man's soft heat, bottoming out as fully as he can in this position. He moans, low and rough, but gives neither of them time to rest. He savors the drag of his cock along supple walls that perfectly cradle him as he eases out just far enough to rub back in again with a deep, firm thrust.