C18 18

Enter as he went faster and faster with skin-to-skin slaps, Kurayami felt his hole tighten around him, amid the increasingly faster and deeper thrusts, in the midst of this, Tsuki had his cock trapped between them, cummings between their abdomens, in which even so Kurayami stopped thrusting him.

Between the quick, deep strokes, when he felt both coming at the same time again