alloerotism

noun

al·​lo·​er·​o·​tism ˌal-ō-ˈer-ə-ˌtiz-əm 

variants also alloeroticism

-i-ˈrät-ə-ˌsiz-əm 

: sexual feeling or activity directed toward another person

called also heteroerotism

compare autoerotism

alloerotic

-i-ˈrät-ik 

adjective