Calum:
Calum would always do cute, yet slightly sexy things when it came to PDA. Like, when you were facing him to talk to him, he would sneak his hands down your waist down to the back pockets of your jeans, and he'd use the pockets as hand warmers, as well as easy access to pinch your bum. Typically, this would cause you to squeal and jump forward, resulting in Calum turning into a fit of laughter.
Ashton:
I feel that Ashton would always have to kiss you in public, just so people know you're his and he's yours. He would always be kissing you on the lips and forehead. He would also try and take a cheeky chance at kissing your neck, because it would always make you giggle. I feel that you two would also do spontaneous things, for example if you were complaining about sore feet, he would either give you a piggy back ride or throw you over his shoulder.
Luke:
I feel that Luke would be quite protective, and it would show in the affectionate actions. Like, if you were in a crowded place, he would either be holding your hand tightly, or have one of his strong arms wrapped around the waist line of your back. He would kiss your temple to calm you down, since you were always anxious in big crowds. The fans always found it cute that Luke was protective over his little penguin.
Michael:
You, like Michael, are quite shy, so neither of you would really indulge in full on PDA. But, he would hold your hand and swing them back and forth, when he isn't keeping you close to his side, that is. He would rest his head on your shoulder if you were waiting in a queue, just because he has such a short attention span. The only extremely affectionate thing you two wouldn't mind sharing would be when you shared Eskimo kisses. (A/N: An Eskimo kiss is when you nuzzle each other with your nose, if you didn't know)

YOU ARE READING
5 Seconds Of Summer Preferences
FanfictionJust thought I'd do a preference book! Hope you all like it!