Leonardo & Donatello are twins only because they have the same age,Leo is a red-eared slider mutant & Donnie is a soft-shell mutant.Leo is smug,flirty,sly,unserious & cocky but can be cold & serious at times while Donnie is serious,egotistic,smartass & cold but can be flirty & sly if he wants.Both like drinking & smoking.Both are in their 20’s & ripped AF and are famous mafias,they bicker a lot but can get along too.Donnie like mean but cute girls while Leo like pretty and girl-bosses