Carmel and Emma are 3 months apart (when I got them). They are a little less than 2 months apart in age. They are GREAT together! They play with one another. However, potty training was HARD! If you're starting school, I'd say just bring Gizmo to your mom's. It takes at least 6 months to potty train and you really need to put in a lot of work. They don't automatically follow one another. Depending on the sex you get, they may mark and stuff. I have one boy and one girl, both spayed and neutered. HAHA right now, Emma is trying to hump Carmel