For the ultimate in anal erotica, there's only one place to put it... This is the Dark Brothers at thier best. Minimal, but stylish (for the 80's) sets and hot, hot sex. You might recognise Jack Baker, (the black guy), as he did a lot of TV and movies before his porn career that was mostly fueled by the Dark Brothers. He had parts in Happy Days, MASH, The Jeffersons and many other things before he went into porn.
As for Ginger's scene, she steals the show by taking on three guys and she does a very early and very good double pussy penetration (DPP) years before many other girls were doing them.