He didn't wait, but moved instantly, covering Louis body with his own. A muttered spell to get him lubricated and ready and Julius was pushing into him with a groan of satisfaction.
In spite of his own wishes, he took it slowly, not wanting to hurt Louis and send him running home. Inch by inch he thrust into him, taking his pleasure, making sure to give enough for Louis to want more of it.
When he was fully sheeted inside, he moved his hand to Louis' cock, stroking it to the rhythm he set for himself. Slow at first, but faster as Louis got used to the feeling of him inside him.