Both are not mine credit to the owner of the original two

Pixie
When the second war started she lost her parents and left to rust until Brutus on a scouting mission discovered her and took her in, she one of the couple of young Autobots on the earthbound team along with sunshine the eevee (who has been posted on deviantart along with the rest of the ES (Eeveelution Squad, from pkm-150) and a young and optimistic bot

Brutus
A weapons expert Brutus is a stern bot who is one of firebrand friends, a once stern bot until taking pixie in and then learn to lighten up and he would become her guardian