I love all cats, But I thought It may be fun to show Tuxedo Cat Pride, Weather they are traditional Black and white, Or Orange and white or Gray and white or any Mix in a Tuxedo pattern =-).
Here's a couple of my cat Memphis. I love both my cats equally, but he has so much more personality than any other cat I've seen. I'm going to chalk that up to him feeling fancy because he wears a suit 24/7.
He even wears his suit to bed, though the paparazzi hounding him at this time does get on his nerves.
I know the term "Tuxedo" is used for black and white cats but hey these days tuxedo's do not come in only black and white and neither do the cat coat patterns hehe.
My roommate had Sami as a kid. Once she got older, she decided to get another...when we saw an add for Buddy she was like "it looks just like Sami!" and HAD to have him. Especially as a reminded once Sami passed on.
The funny thing is, Buddy is normally bad, but Sami would occasionally get into mischief and Buddy would get in trouble until we realized it was her. I miss her.
Tux's come in all kinds of patterns, what I read the thing they have in common is the black and white(Black all down the back and white belly) the mask is what I think you mean by the lip, and it can be very distinct(look at previous photos) or non existing,it can be a smudge or a spot, the main trait is the black and white though.