Budding girlfriends find their friendship taking a turn for the risqué in the closely observed Mexican coming-of-age tale Desviacion Sexual (1972). Maricruz Olivier, Guilliermo Murray, Sonia Furió, and Silvia Mariscal star in a story of deeply felt passion, taboo romance, and societal scorn. Despite the racy themes, Carlos Enrique Taboada’s drama stays mostly chaste, although Mariscal does cut loose with a memorable bout of enthusiastic screwing.