A Sire Is A Headmate Who Has Total Control Over Another Headmate -- Typically A Spawn. They Are Like A Master And Slave, Where The Master Is Controlling And Demanding, Often Ordering And Forcing Their Spawn To Do Things They Do Not Want To Do.
I Would Also Like To Mention That A Sire Is NOT A Intended To Be A Protector Of Any Kind, So If Anyone Could Remove That From The [Related Terms] Section Of The Sire Wiki, Please Do. A Sire May Feign Concern For The Wellbeing Of Their Spawn, But When It Comes Down To It, They Will Not Do Anything To Protect Them.
A Spawn Is A Headmate That Is Subservient To A Sire Or Other Headmate Of Authority That Can Take Control Of Them. They Are Like A Master And Slave, Where The Servant Must Obey Every Order Given To Them By Their Master. They Couldn't Disobey These Orders Even If They Wanted To. It Is Like A Compulsion They Are Conscious Throughout.
Previously Known As An Embracer, But Renamed To (Hopefully) Have Its Own Page On Pluralpedia, A Sitter (Not To Be Mistaken For A Babysitter) Is A Headmate Who Has Total Control Over Another Headmate -- Typically A Childe. They Are Like A Master And Servant Or Teacher And Student, Having A Respectful And Kind Relationship With Their Childe, Only Ordering Them To Perform Small, Simple Tasks, Or Things That May Benefit Themselves, The System, Or The Body. Some Sitters May Never Take Control Of Their Childe Though They Have The Ability To Do So.
A Sitter Can Be Considered Something Akin To A Caregiver, Since They Watch Over And Guide Their Childe. Unlike A Sire, A Sitter Can Be Considered A Personal Protector Of Their Childe Should It Come Down To It.
A Childe Is A Headmate That Is Subservient To An Sitter Or Other Headmate Of Authority That Can Take Control Of Them. They Are Like A Master And Servant Or Teacher And Student, Often Only Being Ordered To Perform Small, Simple Tasks, Or Things That May Benefit Themselves, The System, Or The Body.