Imagine Person A is a Meif'Wa/Neko/ whatever, they purr, hiss, etc. 

Usually, B would pet A's Tail, and Ears, which would make A purr. (Duh)

So One day, B is reading on the couch. A then curls up next to them. B begins to pet A's ears, but instead of purring, A begins to moan. Making B's face go red. A then pouts when B doesn't continue.

You get to choose if B continues to Pet A or Just nopity nopes the fuck out of there.

If this was suckish it's because this was hard for me to put in words ;-;