Why does my sugar glider bite EVERYTHING?

Adopted a one year old male for our other adopted female. When I put them in the tent for play time he bites everything, and hard. I watch TV and I'm not moving much other than to offer a treat or break up a squabble (they aren't bonded to each other yet either), and he will randomly bite me all over. Neck, arms, face, feet. Anything he can get to. I try to take them like a champ, but sometimes you can't help but jump when he lets into the back of my neck or a little toe. He also let into the remote, chopsticks I use to give mealies, jeans and my little glider girl. And no, it isn't nibbles. I'm getting blood blisters. I blow on him when I can reach him, or even my jump when he bites where I didn't see him will stop him. But its not deterring him. What is his issue and what can I do to stop his biting. Its completely unprovoked so I have no ideas. Help!