Izzy grinds into him again, feels him clenching, the moan against the desk reverberating down into Izzy's dick, and that does it-
With another couple of thrusts, Izzy tips over the edge, feels his balls tighten. An electric spark of pleasure winds it's way into his extremities, and he spends, drawn out and with a too-loud moan. He feels Stede tighten around him, clenching, and it makes him stutter out another few thrusts before collapsing on Stede's back.