A man cumming inside his sex partner during sex.
Referring to adding protein a beverage like a shake or smoothie.
The male egaculate is sometimes referred to in slang as being protein.
Referring to adding protein a beverage like a shake or smoothie.
The male egaculate is sometimes referred to in slang as being protein.
by "MADMAN" December 27, 2020
Get the add proteinmug.