Paper published in BJUI (British Journal of Urology International), Volume 83, Suppl. 1, pages 79–84, (1999), and authored by K. O'Hara & J. O'Hara. The authors surveyed women having sexual experience with both circumcised and anatomically complete partners to determine if there were any differences in sexual enjoyment. They determined that circumcision results in a less satisfying sexual experience.

"Several respondents commented that the foreskin also makes a difference in foreplay and fellatio. Although this was not directly measured, some respondents commented that unaltered men appeared to enjoy coitus more than their circumcised counterparts. The lower rates of fellatio, masturbation and anal sex among unaltered men [5] suggests that unaltered men may find coitus more satisfying [20].

"Clearly, the anatomically complete penis offers a more rewarding experience for the female partner during coitus. While this study has some obvious methodological flaws, all the differences cannot be attributed to them."