2 Female cats!

i have 2 female cats from the same litter. Would like them to go together. One is black and white and the other is a calico. Both are front declawed and spayed. No known problems. Have all medical records. Have been vaccinated but may need to be up to date shots. INSIDE cats ONLY. Both are kinda skiddish or get scared easily. The black and white one is more loving than the calico