pseudo- ˈso͞odō/
prefix: pseudo-

1. supposed or purporting to be but not really so; false; not genuine.
2. resembling or imitating.

Origin: from Greek pseudēs ‘false,’ pseudos ‘falsehood.’

sex·u·al ˈsekSH(o͞o)əl/
adjective: sexual

1. relating to the instincts, physiological processes, and activities connected with physical attraction or intimate physical contact between individuals.

synonyms: carnal, erotic; 
Origin: mid 17th century: from late Latin sexualis, from Latin sexus ‘sex.’