oh and travis, when theres a guy involved, it turns into amigOs. even if there are 100231938129321830128321 girls, if there is 1 guy, its amigos
Yeah it has to do with the spanish masculine and feminine rules. In a group of all females, you would use the feminine form. In a group of all males, you would use the masculine form. And in a mixed group (no matter how one sided the genders are) you use the masculine.
Since he included himeself, a male character, it is the three amigos.
Sorry to be technical, but I wasnt sure if you had learned your one thing today, and as the saying goes, if you learn something new every day, and if you dont, you die.