This was originally written in 1965 when two waitresses at the Shakey’s pizza parlor he was the night janitor at conned him into believing that they wanted a 3-way with him when all they really wanted was the use of his van in the pizzeria parking lot to engage in illicit lesbian sex. They locked Hack out of the van as soon as they got inside and while it rocked violently back and forth, he wrote this novel in his head.
The two waitresses spent twenty years as Catholic nuns and are now married to each other and run a feminist bookstore in Portland, Oregon.