The STD you're looking for should be gonorrhea.
Gonorrhea are usually ransmitted to people by penetrative sex.
The transmission agent of gonorrhea is bacteria, and symptoms includes pain or burning feeling while urinating, discharge of pus, or even no symptoms at all, especially in women.
Gonorrhea, unlike other STDs like AIDs, can be completely cured if treated correctly usually with a course of antibiotics, prescribed by doctors.