Jacen was far from who he had been when he'd used that name. But he wouldn't ever deny it still meant something to him, on a level no one but Tahiri would get to see. He was her Lord. And the Dark Side did find its way so easily to the surface when they were like this. She had reacted as he'd imagined she would, playing rougher as he'd broken the rules but betraying herself with every movement she made.
And she had her control back, slowing every time it seemed like perhaps they were close to the edge. Prolonging the whole thing and Jacen didn't mind one bit. It was an exquisite torture and she knew exactly how to do that to him.
He'd broken her rules and this was her punishment, and so he gave in. Time didn't matter, the only thing he could think, could feel, was her. His apprentice, his Tahiri. He pushed back, stealing kisses, bites whereever he could. He wanted so much more.