3357: Altair's Links
Relationship Status: Fraternal Twins - Positive familial relationship
Altair and Sirius have been inseparable since the womb, attached at the hip nearly every day. They're so close, even, that while many doubt it, Altair and Sirius have a psychic connection.
Sirius will defend Altair until the day he dies, and Altair will do the same for him.