I noticed the guy doesn't wear a condom.
Chancroid
Chlamydia
Crabs
Gonorrhea
Hepatitis
Herpes
Human Papillomavirus/Genital Warts
Lympogranuloma Venereum (LGV)
Molluscum Contagiosum
Nongonococcal Urethritis (NGU)
Pelvic Inflammatory Disease (PID)
Scabies
Syphilis
Vaginitis
and of course HIV...