Two followers at the same time np :) just have to leave the dog at home.

                               
Me and my followers Lydia and maya and yes you can have two.

This only works on pc.from console type
these 3 commands after you target the npc you want.
ssq 750ba
forcerefintoalias animal
setplayerteammate 1  

remember it take's all 3 to work.                  My Lydia with apachii hair.
Down side is you can't have a dog .

                                                       Maya's wearing NEO's witch outfit.