Newt- You also call him love but a lot of the time you call him darling. When you want to annoy him or embarrass him you call him Newtie the cutie. He pretends to not like it but you know he secretly loves it.

Thomas- You call him baby or tommy, you and Newt are the ONLY people who are allowed to  call him tommy, he'll give a  death glare to anyone else who calls him that. The way you annoy him is when he's talking to his friends and you will come over and say in a baby voices "awww look its my wittle wunner" he goes bright red. But you know that he loves it.

Minho- You'll either call him babe or hot stuff. He loves the nicknames you give him but he does get rather embarrassed when you call him Min-Min

Gally- Captain Gally or gal are the names you gave him. The way you annoy him  is by calling him eyebrows. He will pretend to be angry but he knows your joking. 

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I'm so sorry if you didn't like the nick names I hope it didn't suck 😬