 Westheimer, Ruth K., Sex for Dummies. ↑ Rogiere, Jean, The Little Book of Sex. ↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑ Hooper, Anne J. (1998). Anne Hooper's Kama Sutra (1st ed.). DK Publishing. ISBN 1-56458-649-9. {{cite book}}: More than one of |ISBN= and |isbn= specified (help)↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑  {{cite web}}: Empty citation (help)↑ Morin, J. (1998). ↑ Tate, Jordan. ↑ Cohen, C. E.; Giles, A.; Nelson, M. (2004). "Sexual trauma associated with fisting and recreational drugs". Sexually Transmitted Infections. 80 (6): 469–470. doi:10.1136/sti.2004.011171. {{cite journal}}: |access-date= requires |url= (help); More than one of |DOI= and |doi= specified (help); More than one of |accessdate= and |access-date= specified (help)↑ Preuss, Johanna; Strehler, M