his passion was killed in an instant when on removing her panties he saw the black and tan frothy skid marks in her gusset which looked like guinness kisses
the frothy skid marks left in a womans undergarments
"his passion was killed in an instant when on removing her panties he saw the black and tan frothy skid marks in her gusset which looked like guinness kisses" What is the definition of "guinness kisses"?