How do you politely tell your lover that their breath smells like they have a rotten tooth in the back?

a hail of tic tacs

How do you politely tell your lover that their breath smells like they have a rotten tooth in the back?
Say,"Hey,have you tried this new mouthwash,it's awesome."
Reply:just tell them if they are your lover you should be able to tell them something like that but what i want to know is what does a rotted tooth smell like?



flower