Smash Brothers!

(And we have a winner!)

"How about this one?" she suggested, picking up a Nintendo game. Smash Brothers.

"Oh, that's a good, popular one," he remarked, helping her get it set up. "And it has some nice attractive girls in it too. You'll have options," he assured her.

Her cheeks darkened with a blush as she got started, and he instructed her on the goal of the game. Instead of hit points, the idea was to knock an opponent off the edge of the battlefield and make sure they fell instead of making it back to safety. "Of course, hit points still play a role... Sort of," he added.

She picked Princess Peach first and did terribly as he did his best to explain how the damage percentages at the bottom of the screen determined how way it was to knock the affected character a good distance. That, along with how big the character was, had a role. Katara lost badly with Princess Peach, and Aza winced.

"Oh, that sucked... Maybe try another character?" she suggested.

Katara nodded, pouting slightly, before settling on a figure with powered armor. "This a guy or a girl?" Katara asked, not wanting to assume.

"Oh, that's Samus, and under that armor, she is a hot girl," David nodded, smiling fondly. Katara nodded, selecting the character and tried her out, following every tip David gave her. She did slightly better. "Don't worry it takes practice," he told her, picking up a controller and sitting down next to her.

Aza leaned over the couch behind them to watch as they played together. Turned out David was great with Kirby. They played for a couple hours, Katara steadily improving with Samus. She even tried her in Zero Suit Mode. "...okay, I think I want her added to the harem," Katara grinned.

"That your final answer?" David asked as they powered down the console.