Izuocha

He's big spoon and she's little spoon

Todomomo

He's big spoon and she's little spoon

Kirimina

He's big spoon but they occasionally switch

Kamijiro

They switch

Iidamei

He's big spoon

Tokotsu

They switch

Ryushot

They take turns

Miruhawks

She's big spoon

Erikota

She's little spoon unless he is in a bad mood. 

Hitorei

She's big spoon

Bakucamie

He's big spoon

(Extra)

Kuroiro x Komori

They switch

Toodles! X3