"Wait." He grunted as she clenched her inner muscles around him in revenge. His demon was both amused and irritated by that.
Harper froze mid-thrust as Knox's eyes bled to black. The demon didn't look pissed, but it definitely looked a little piqued. Shit.
"Sneaky little sphinx," it commented.
"I get a free pass on my birthday, though, right?"
It chuckled, and it was an odd sound; flat, yet not humorless. Then Knox was back. She was about to speak, but he arched a displeased brow.
"Who told you to stop?" he demanded, smacking her ass; her pussy clamped around him and soaked him in a rush of cream. "I said wait, not stop. Ride me."
She mumbled a curse, but he let it slide – mostly because she was frantically impaling herself on his cock. The feel of her so slick, burning hot, and almost painfully tight around him was too much. He knew he wouldn't last much longer.
"Make me come, Harper. Do it," he bit out. "Then you can come."
