- [Book illustrations]
- 12 illustrations : pastel watercolor washes.
- Title supplied by cataloger. Three watermarked initials, BFK, appear on several sheets at the bottom of the page.
- Series of 12 pastel watercolor washes depicting various forms of heterosexual sex behavior. Includes coitus, fellatio, and masturbation with dildos.
- Kinsey subjects
- Art--20th century. Book illustration. Sex behavior. Coitus. Fellatio. Masturbation. Dildos.