prurient
adj
(fml derog 文, 贬) having or showing excessive interest in sexual matters 好色的; 迷恋淫欲的
She showed a prurient interest in the details of the rape case. 她对那强奸案的细节津津乐道.
As no pumas had been reported missing from any zoo in the country, this one must have been in the possession of a private collector and somehow managed to escape.