This turns you on and you want him to know it. Decisions About Specific Sexual Practices. The activity that can cause a UTI can be sexual or non sexual. Unless they tell you they love it when you are sweaty and stinky, take a shower or take a warm washcloth and clean up not just your penis, but your balls and perineum area. You take your time as you approach the head of his cock and give him an even more firm squeeze as you get there.