lascivious

1. ADJ If you describe someone as lascivious, you disapprove of them because they show a very strong interest in sex. 好色的; 淫欲的[表不满]

The man was lascivious, sexually perverted and insatiable. 这个人是一个欲壑难填的变态色情狂。

...their lewd and lascivious talk. ...他们之间下流猥亵的对话。