Glo If my brother gets a Glo, can we share our library?

I got my Kobo yesterday, and I am loving it. The stats, the Open Dyslexic font, the light, the customization. Only thing that I notice is that the battery life is pretty weak, dropping 10% very fast after a 5 hour charge?

Anyway my brother is thinking of buying one also, would we be able to share our books? Amazon allow family members to do this.