Lucy~
You'd cuddle into her side like a little baby, with her arm wrapped around your waist.
Erza~
She'd sit you on her lap and hug you like a huge teddy bear.
Mirajane~
You'd both lay sideways with her spooning you, Mira snuggling into the back of your neck.
Juvia~
She's hug your head with her legs on either side of your chest and back, with you having one arm around her waist and your free hand on her lower leg.