The sexual juices of both genders get smelly when exposed to air. Assuming you are using condoms, the smell is simply your semen putrifying in the presence of oxygen. If you are not using condoms, you will both get a little smelly within an hour or so. In both cases the recommendations here (wash) are all you need.
If the smell lasts after washing well or is noticeable when you urinate, then you have a low level infection - either urethritis or prostatitis. This is a common infection in both sexes and is not considered an STD although you can share it! In this case of an infection, medical attention is needed. We see this every day and no doctor will assume anything other than you have a urethritis. It is easily treated but you should use a condom for at least as long you are on anti-biotocs so you do not pass the germs back and forth.
Brandye
Posted: 30 Sep 20:54