Steel is the tougher cousin of soda.

My older sisters thought process:
Soda is carbonated water right?
Steel is carbonated iron, right?
Therefore they are carbonated cousins.

Guys, don't stay up until one in the morning.

P.S. What if they weren't in the same family group? What if they were part of different families? What would it be like it Soda and Steel had a kid?

(Answer: Cybertronians)

All italicized stuff is things my sister said. Bold is something I really wanted to highlight. XD