Licking inside of other dogs mouths

Question
Hi,  I have an 11 month old Boston Terrier and a 2 year old Boston.  They get along fabulously and are inseparable.  I was just wondering why my 11 month old licks my older Boston's mouth.  He also tries to do this to my daughter's 4 year old pit bull mix.  She doesn't seem to like it much.  Riley (11 month old) doesn't do this all the time but does do it occasionally.  Are these kisses?  Just wondering what that means. Thank you for your time.  Annette

Answer
Hi Annette, Well I think it may be just cleaning your other dogs.
Some dogs like to clean the others face and ears daily.
Like a momma cleaning the pups.
She may like the smell of the mouth area?  Could also have just
become an odd obcessive compulsive behvaior..
YOU can try our Behavior Experts with this Question?

Thanks
Marie Peppers