The exsphere was so much a part of Sheena, having had it for months, that she didn't even notice its presence anymore. She'd even gotten used to not feeling the gentle tingle of the mana circulating through her system since the crystal had fallen dormant recently. As it was, though Yukari centered her attention on it, it never registered to the ninja as anything other than the youkai finding a sensitive spot and using it in an attempt to drive her wild.

Which was exactly what she got if the sound the ninja made was any indication.

In fact, she had to break the kiss in the process, tilting her head back to draw in quick breaths. The hand buried in long blonde hair tightened, almost painfully, and she racked the nails of her other hand down the youkai's back. Dark, smoldering eyes opened to take in the youkai for a few long seconds before her lips found their way to Yukari's neck.