Mixing sauces
Mixing sauces is when a female and a male are having sex and the female is on her period and the male cums inside of her, so mixing of the "sauces".
" I heard that tommy and Sally were mixing sauces lay night"
-" that's kinda hot"
-" that's kinda hot"
mixing the sauces
When an individual is having sex with more than one person. They are mixing sexual "germs/secretions" from one person to the others in which case they are mixing sauces.
"Bro, I have herpes but I don't know who I got it from?!"
"Dude, you have gotta stop mixing the sauces.."
"I am so not into just her anymore man, I am gonna just mix some sauces."
"Dude, you have gotta stop mixing the sauces.."
"I am so not into just her anymore man, I am gonna just mix some sauces."