Dom!Emily
Emily continued for some time more before she sighed, enjoying the feel of Sakura's soft ass in her hands. Honestly, she was a tiny bit jealous of Shirou, just a little. However, far be it from her to take impede in the desires of others. That aside, it was up to her to keep things going.
With that in mind, Emily released Sakura's ass with some small amount of regret and grasped Shirou's leash instead, tugging on it harshly as she led him over to the bed, in clear sight of Sakura.
"Here we go," Emily said, resting her hands on his shoulders, "Now then, I suppose it's time to take something else from her."
With that, she flashed Sakura a vicious grin before her hands snaked around the back of his head, pulling him in as her lips met his, the vines tightening around Shirou's limbs to remind him of their presence. Holding the kiss until a need for air forced them apart, Emily pushed Shirou onto the bed, the vines still coiled around him.
"Don't worry, there'll be more where that came from," Emily said, picking up a nearby candle as she made her way back to Sakura, "You'll just have to be a bit patient."
With that, Emily strode over to Sakura, candle in hand, stroking Sakura's hair a bit on a whim.
"Maybe a little taste of the pain we went through might keep things entertaining?" Emily mused, toying with Sakura's hair, "At least for me."
With that, the Changeling picked up the candle and started pouring the wax down on Sakura's back, making sure to drip the hot wax along every inch of skin that she could, first along her back, then further down to her ass, and then finally onto her thighs, taking a moment savor each pained sound.