Desc: Colegiais e Lições de Sexo: Directed by Juan Bajon. With Nereide Bonamico, Ivete Bonfá, Lídia Costa, Mauro de Almeida. The principal of a school turns the classroom into a studio and makes his students porn film actors to be displayed in the motels of his property. At school, the principal sells grades and diplomas, not interested in academic performance.