Frostbite is the older sister (she's 20) and Feral's the younger(she's 18) these two are really close, being foun at the ages of 2 and 4. Feral is the tech expert and hacker, while Frostbite is the combat expert, they both are pretty speedy, faster than the normal hedgie speed(Silver, Amy, Rosy, Manic, and Sonia) but not as fast as Sonic. Feral is the calm and collected one while Frostbite is the one that can't sit still.
As usual is has a sketch under it.

Sorry it's sideways-

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