Comma Sense: Nonrestrictive
Nonrestrictive, dependent clauses: When a dependent clause adds information to a sentence without changing its meaning, set it off with a comma.
She is the madame of the house, which offers both male and female prostitutes.
I squeezed all the muscles in my pelvis, another trick for exaggerating an orgasm.
Now you try:
Nobody likes a sloppy kisser not even sloppy kissers.
He held his dick just outside her cunt which salivated excessively.