Renee
Kagayaki grinned, somewhat happy he remembered her. She chuckled at his statement. She became curious about his friend, lightning users were always interesting people in her eyes. "I'd love to meet her." She commented, nodding as he prepared.

She pulled out some metal wire from her ninja pouch, unwrapping it and stepping closer to Murano, she gave him the tip of the wire, "Hold this for me." She would tell him, before stepping back until the string was stretched.

"I'm gonna flow lightning through the string, and zap you." She commented. The string was tied around one of her fingers and so it didn't get in the way of her hand seals. She signaled them promptly, calling out the technique. "Lightning Release: Heart Strings." 

Lightning surged on her fingers and flowed into the wire and towards Murano. They quickly reached him, shocking him. It wasn't too big a jolt, but he could certainly feel it. She stopped and looking him over, "How was that?" She would ask. This was the main reason she needed someone to practice this technique with, so she could know how powerful the jolts were, given her weak endurance, she wouldn't be able to resist many.
Brandon
"I think I see where this is going..." He said as he took hold of his end of the metal wire and watched her step back. Sure enough, her explanation was pretty much 1:1 what he thought the technique entailed. He gave her a nod and watched as she'd quickly throw out a few hand seals before sending a surge of lightning through the metal wire. Instinctively, his body told him to toss the wire away but he'd keep it firmly grasped in his hand for the sake of their training. 

As soon as the lightning reached his hand, he felt a sharp jolt of pain shoot up his wrist, causing him to instinctively toss the wire down. "Damn!" It didn't hurt all too much, but it stung like hell for a few moments after the initial impact and left a throbbing pain. 

"Well, it hurt. You could probably up the ante a bit though, it spooked me more than it hurt. It' just a sort of throbbing pain now." He reached down and took hold of the metal wire once again.
Renee
Kagayaki nodded, holding back a chuckle. She understood what he meant, now it would just be a matter of practicing. She felt a little bad about Murano having to be her practice dummy, but knowing he himself was training his resistance and endurance meant she was helping him somewhat, which eased her mind a bit.

"Alright let's give it another shot." She said as he grabbed the wire once more. Signalling the correct hand seals, she called out the techniques name. "Lightning Release: Heart Strings." Like before lightning flowed into the wire, and towards the Chunin, electrocuting him at it reached him. The jolt was more powerful than last time.
Brandon
"Ready when you are." He replied shortly before she called the technique's name out. This time, he wouldn't be caught so off-guard by the jolt since he somewhat knew what to expect. He held tightly onto the wire and felt as the electric charge surged through his hand and up his wrist. It was definitely an improvement on her last try, he could feel that throbbing pain flare up again from before. After a few moments the pain would subside and he kept the wire tightly held. Some small part of him was proud he'd managed to hold on for so long, unlike their first attempt. 

"Yea, that was way better. You definitely upped the ante there."
Renee
Kagayaki clapped with a smile, somewhat impressed he'd managed to keep hold on it. She grinned at his comment, and approached, taking out another wire. "How bout I double it uh?" Her grin turned mischievous as she handed him another string to hold, before stepping back.

Much like before, she tied the string around one of her fingers, this time on her other hand. She quickly went through the seals before calling out the technique, "Lightning Release: Heart Strings." She extended out her hands, lightning appeared on them before flowing towards Murano. The delivered shock wasn't much larger than last time, but noticeably so.
Brandon
"U-uh, yea, sure. Just don't put too much lightning into it, alright?" He said hesitantly as he took the other wire. With both wires now in hand, he'd wait ill-hidden nervousness for the next shock of electricity to come coursing through his hands. Mere moments after she finished her hand seals he'd feel the electricity surge once again into his body. This time, he instinctively tossed the wires aside and cradled his aching hands. The shock may not have been much more, but the fact that it was both his hands made the pain nigh unbearable. 

"Damn! That *Really* Fuckin hurts..." He remarked, waving his hands in an futile attempt to wave the pain away.