kinky

1. ADJ If you describe something, usually a sexual practice or preference, as kinky, you mean that it is unusual and would be considered strange by most people. (尤指性行爲(wèi)或性癖好)反常的[非正式]

He had been engaging in some kind of kinky sexual activity. 他一直在進(jìn)行一些反常的性活動(dòng)。