5D's

 "Yusei!" a girl with blue eyes, long black hair with some spiking out near her head with some yellow in it, tan skin and a mark to match her brother, said as she tackled said brother in a hug. "Yasmine. What did I say about tackling people into a hug?" the boy, Yusei, asked with a hint of amusement in his eyes. The girl, Yasmine, seemed to be thinking for a bit. "Too not do it because they could have a heart attack?" she asked, a smile tugging at Yusei's lips. "That, and..." Yusei said as he got his sister off of him. "You might make me fall over and break some of my stuff." Yusei said, smiling at his twin sister in full now.

Yusei was wearing his pants and tank, his jacket hanging on the wall. Yasmine was in relatively the same outfit, just more feminine. "Want some help?" she asked, putting her hair back into a ponytail, already knowing the answer. "Yea. Can you tell me what's wrong with the design?" Yusei asked, going over to the computer that was in the garage, Yasmine following behind.

An hour later, two other males came down from the rooms above, noticing the sound of an engine and the clanking of tools and metal down below. "Yasmine!" the red haired male said, more like shouted, over the noise in the garage. They didn't hear him. Both males sighed and the one with red hair went over to the twins. The red head tapped on Yusei's shoulder, causing him to look at him. Yusei stopped the engine and put his tools down. Yasmine, noticing the sound went away, turned to look at her brother from her position at the computer.

"Crow! Jack!" Yasmine exclaimed, running over to them. Yusei quickly put his arm out, preventing her from hugging them. "Same old habits, huh?" Crow asked, a smirk on his face. "Eh. Old habits die hard." Yasmine said with a shrug.