Aww man.. I got a few lol.
My ex when I was like 20 was home alone because her Dad went out to do some taxi. I went over there to just chill for a bit and one thing led to another and we kissing. Her breath was a lil tart but I ain't pay it no mind. I then started fingering her and while I was doing that I pulled my finger out and smelled it and it fukking stank. shyt smelled like a fish and cheese soaked sock.

That smell was stuck on my finger for like a day after washing it repeatedly.
Another chick I was fukking, fat ass and everything one time came up to my room. Yo, her feet was ROCKIN
I legit was flabbergasted. I think I was trying to do something but i was stuck between a state of disbelief and confusion. I wanted to smash but that foot was rancid. Idk why it was so bad that night. I ended up making her a PB&J sandwich or something because I think she was talking about she was hungry.
Other than that i ain't really had no other chick with bad odors or nothin. This other chick though had a lil smell in her mouth that made kissing her not too fun but ehh.. Funny thing is I never fukked her for some weird reason.