for a large mammal sure, but little ones it may be different. in theory, anyway. you give a pet a few ozs of booze (i would never) and theyd be fucking ripped to the tits. wouldnt it be possible for a little kitty cat to be exposed to a high enough level or nicotine from 2 people smoking at the same time? someone should do a study.
I think it depends on the concentration administered to the pet but I would imagine your cat just wants to be around you. It may actually associate the smell of cigarettes (i.e. wet butt) to you and the missus though.