The Mortal Instruments/ Infernal Devices Preferences

You Take His-

Jace:

Shampoo, you're so curious as to how he's able to kill tons of demons and come home with his hair perfect, so you use his in hopes that your hair will also stay immaculate.

Alec:

Phone, you love to take it and change everything around just to confuse him, you also love to take tons of selfies and send them to random people on his contact list.

Magnus:

Eyeliner, you love all of his wacko colors and the look of teasing annoyance on his face when you take them.

Simon:

Funny T-shirts, you love all the jokes on them and are happy to  relate to them and understand the gaming ones.

Raphael:

Pillows, you love how he always has the best of pillows and when he's not looking you take them all and cover your self with them.

Sabastian:

Robe, you love how super soft and comfy it is and you love to hide it and watch him get frustrated when he can't find it.

Jem:

Blanket, you love taking it and cuddling up into it just to be able to be surrounded by his bitter -sweet, boyish smell.

Will:

Shoes, you love putting them on and walking around the institute pretending to be him while talking about how frightening ducks are.