Harry:
You make sure the bathroom door is open before you shower so when you finish, he has a clear view. You run a towel through your hair and catch him watching you in the reflection of the mirror. His attention is solely on you, football game completely forgotten and you smile. This is how you've always done this. You know he can't resist you when you do something naked, especially naked and wet. You prop a foot up on the toilet seat and pump some of his favourite lotion into your hand and rub it into your damp skin. You're massaging the lotion up your stomach when he groans from the bed and you turn to find him palming himself and you grin. Mission accomplished.
Liam:
You send him picture messages throughout the day while he's away. They start off innocent enough; you in whatever outfit you'd picked for the day. As the day progresses, the pictures become more risqué. You show more skin, hitch your dress up higher on your thighs or pull your shirt higher. He texts back, horny and annoyed that he isn't with and usually begs for the full picture of you naked but you don't give in. No, not until it's just a few minutes before it's time for him to go on stage do you send him a picture of you in nothing but your lace lingerie with "good luck" written across the tops of your breasts. He doesn't text back until after the concert and he's usually pissed, more so at himself for not being with you than at you for teasing him relentlessly all day.
Niall:
You tell him what colour underwear you're wearing. The knowledge of what you're wearing beneath your clothes drives him crazy and he finds it hard to control himself. You'll text him the colour, leave a voice message, or whisper it to him and his eyes roll back while trying not to manhandle you in public. You make sure he can see bits and pieces of the lace hidden beneath your clothes; hitching your dress up or pulling the collar of your shirt to the side until he's flushed. His grip tightens around your fingers until he pulls you into private, finally able to see the whole set for himself and you smile.
Louis:
You know the only thing he ever wanted to do out in public was hold your hand or hug you; PDA wasn't really his thing. However in your case you loved to show everyone how you felt about him. So you used his love of sexual advances against him out in public whenever you could. You always stuck your hand in his back pocket, squeezing his ass whenever you walked down the street. You also made sure to rub your chest on him, whenever the opportunity presented itself. He knew what you were doing, and that if he fought it you would only amp it up more.
Zayn:
You always take the opportunity to feel him up whenever the two of you are at the dinner table with friends. You love to watch him fight you off inconspicuously. You place your hand on his knee and he immediately knows what's up. He takes your hand and places it back in your lap without even looking at you. You chuckle to yourself as you put it back on his knee. Once he stops resisting you inch up his thigh until your gently massaging the hard on you had given him. You look up at him and wink as he shoots you the "I hate you" look. You smile back at him and continue to massage him so he knows what's going to happen once the two of you get home.