The OP reminds me of one of my first punts years ago.
WG was an early 20s blonde stunner, came to the door in sexy lingerie and stocking & heels. Followed her upstairs, staring at her peach of an arse all the way, I couldn't wait to get those lace kegs off her.
Into bedroom, took off bra to reveal nice perky tits... then dropped her pants, at first whiff I thought the room was just a bit stale. Then she handed me a bottle of coconut lotion, lay on her front and purred "massage me" and opened her legs...
The only way to describe it was as if a bin lorry had dumped it's entire load into the bedroom
I've never smelled Sarstrumming; you know that Swedish fermented fish "delicacy" that's banned on airplanes for being too foul? Now I don't have to.
Anyway, I quickly started applying loads of the coconut stuff to her fanny & arse to try and mask the stench, while she purred away oblivious. But all that did was mix smells; ending up with a pungent cocktail of sweet coconut & rotten mackerel.
After several nauseating minutes of a bj, handjob & avoiding her Nether Regions of Rotting Doom, I made my excuses and left.
Fresh air never smelled so sweet, let me tell you.