Ashton: Ashton would have no problem whatsoever showing people who you belong to but he'd be very sweet and behave like a total gentleman, subtly letting advancers know you belonged to him, he'd snake a casual arm around your waist and pull you into him or lightly hold your small hands in his own large one, placing a light kiss to the side of your face and smiling in smug pride that he had you.
Calum: Calum would be the jealous type, he'd hate seeing other men look at you provocatively so he would walk to wherever you were and passionately kiss you, even if it made the moment super awkward, he'd then put a hand on your behind and narrow his eyes at anybody trying to come onto you.
Michael: Michael would get jealous easily and he would always try to be really cute about it, pouting and asking you for hugs and if he ever saw another man talking to you he'd walk behind you and wrap his arms round your waist and rest his chin on your shoulder whilst whispering sweet nothings in your ear until your attention was completely on him, and whenever you were out together he would always pull you onto his lap and cuddle.
Luke: Luke would want to be really subtle because he wouldn't want you to feel like he was being overprotective, he'd do simple little things like allowing you to wear his t shirt and clothes and buying you a necklace with his name on it and whenever he felt threatened he would casually take your hand and twiddle your thumbs with his, just as comfort to himself that you were his and only his.
