The Neighbor's O.R.G.Y., by Ted Mark
This is a VERY late Man from O.R.G.Y. novel, published in 1980 by Kensington.
The death of a sex researcher brings Steve Victor in to investigate. Of course, he can't wait to pump the women for clues. The usually sexy silliness from Ted Mark, though the emphasis seems to have shifted from spy parody to mystery parody.
VG condition. Creases to spine, front cover by spine. Clearly read. Paper and binding are nice. VG copy.