Today's society is overly sexualized.
Several points to make. Starting with the first four.
1. Women on average tend to wear more and more revealing clothing and tight clothing typically to make out the buttocks area.
2. Easy readily excess to explicit content in multiple mediums.
3. Extending sexual behaviors beyond sexual intercourse such as oral sex, anal sex, use of sexual toys, scatology, the use of any bodily part for sexual stimulation.
4. Through t.v., movies, media, less and less restraint on sexual matters, more explicit, less sexual innuendos but more coarse.