Luke:
You really love Luke's red and black plaid shirt. Sometimes you love it even more than your boyfriend so when you're given and opportunity to wear it you do. Luke only ever let's you do it because of how cute you look in it.
Ashton:
Ashton's favourite outfit for you is anything you're completely comfortable in. It's usually your pyjamas or sweatpants though. As long as you're completely happy with what you're wearing he doesn't care. To be honest you could wear you're ugliest clothes and he'd still love you.
Calum:
Cal loves it when you wear dresses, or anything to show off your legs. He loves your legs - they're one of his favourite things about you. He just loves how they look in anything short. He's not a perv about it though, subtly admiring you, and stroking your thighs softly to let you know he's still there.
Michael:
He loves it when you wear one of his t-shirts and your underwear. Any underwear lacy and black and he'll be all over you in a heartbeat. When you wear his clothes it makes you look vulnerable and he loves having the feeling of needing to protect you. After all you're his baby.