I say just buy a bigger carrier! I have three furbabies. Two of which are just about the same size. So, I opted to purchase a carrier that they can both fit into. My third furbaby, which is stockier than my ladies has the same carrier. But, he gets toted around all by himself. My daughter and I have a blast with the three in two carriers. People are always amazed when two heads pops out of the ladies carrier.
