▁book ▁on ▁sexual ity ▁and ▁makes ▁a ▁living ▁tre ating ▁wounded ▁animals ▁found ▁by ▁fish erm en . ▁Her ▁mother , ▁Sul i , ▁inv ites ▁friends ▁from ▁Argentina : ▁a ▁sur geon , ▁his ▁wife ▁and ▁te en age ▁son ▁Ál var o . ▁The ▁purpose , ▁unknown ▁to ▁N ést or ▁and ▁Alex , ▁is ▁to ▁discuss ▁the ▁possibilities ▁of ▁sex ▁re ass ignment ▁surg ery , ▁with ▁Sul i ▁quietly ▁hoping ▁that ▁Alex ▁will ▁decide ▁to ▁be ▁female ▁and ▁go ▁through ▁with ▁a ▁surg ery ▁in ▁the ▁beginning . ▁ ▁The ▁introduction ▁of ▁the ▁relationship ▁between ▁Alex ▁and ▁Ál var o ▁further ▁comp licates ▁the ▁drama ▁of ▁the ▁movie . ▁When ▁Alex ▁asks ▁Ál var o ▁directly ▁if ▁he ▁would ▁like ▁to ▁have ▁sex , ▁she ▁is ▁initially ▁denied , ▁but ▁Ál var o ▁later ▁follows ▁her ▁from ▁the ▁beach ▁and ▁she ▁s edu ces ▁him . ▁She ▁begins ▁to ▁have ▁anal ▁inter course ▁with ▁him ▁( with ▁her ▁as ▁the ▁pen etr ative ▁partner ), ▁and ▁while ▁Ál var o ▁is ▁surprised ▁he ▁does ▁not ▁stop ▁Alex . ▁N est or ▁catch es ▁sight ▁of ▁them ▁through ▁the ▁door ▁and ▁they ▁stop , ▁and ▁Al var o ▁r ush es ▁out ▁feeling ▁conflic ted ▁and ▁still ▁in ▁a ▁pan ic ▁at ▁the ▁unexpected ▁revers al ▁in ▁sexual ▁roles . ▁When ▁Alex ▁later ▁apolog izes , ▁Ál var o ▁reve als ▁that ▁he ▁liked ▁it ▁and ▁has ▁no ▁bad ▁feelings ▁towards ▁her . ▁ ▁This ▁scene ▁opens ▁the ▁dialog ue