Hikari was soon drained of any form of resistance as she could only moan weakly, losing control of her bladder as Draco pounded her roughly. The fellow was truly experiencing bliss in his Horned Demon form that made every thrust feel like it was the first one.
With his state, he could choose when to cum, so there was no way he would be blasting it out in mere minutes. This led to a situation where Hikari got brutally railed for almost a quarter of an hour, and it didn't look like Draco was satisfied with just that.
In truth, he would have stopped a little earlier and unceremoniously sprayed his lovely White Dragoness with his semen, but he noticed that she was in a serious trance. In this state, the Creation Energy in her body was excited, moving through her rapidly with every thrust he made.