The Hours of Rapture by Sheldon Lord

When husband and wife both wander the result is something new in sin.

'Love on the rocks. After two years of frsutrating marriage, Lola's desperate desires made her seek fulfilment in strange new directions. Her husband, Gil, was not above a little playing around on the side, but the shock of discovering his wife's hidden nature was almost too much for him. He knew he could never satisfy her gnawing hungers, but the thought of losing her voluptuous charms - to other women - was more than he could bear. His own aching needs cried out for an answer. And when he found one, his marriage became one of the strangest of all time...' -Back cover