I have just listed several vintage sleaze paperbacks as well as some bondage and fetish material (all auctions). See my other listings. Happy to combine shipping on multiple purchases. 

Dexter, John. Lust's Butterfly. San Diego: Candid Reader, 1969. First Edition. PBO. CA980 (Holroyd page 197). Fantastic cover art by Robert Bonfils. Light creasing to spine. A very good or better copy. Scarce. "It began, for Bob, with a dogfight in the sky, and ended up with carnal combat in the bushes with three round-heeled beauties. He found that a friendly chick can be more dangerous than an airborne enemy, but he stuck it out, all for the love of Butterfly." If lusty Lepidoptera is your thing, then this one's for you!