You each take a half-made charact7er and switch them. You can give the other person the area of their species, age (adult, young child, elder, etc) appearance, and basic personality traits, along with anything specific you'd like in a character.
For me, this would be my submitted form. The other would have to fill in the rest.Male
Sea dragon
Adult
Blue scales and frills of deeper blue. Curled horns and emerald eyes, muscular
Flirty, deep voice, caring, thoughtful