The message, most probably, will be clearer. Many people do not want to be touched or hugged. It is not their job to tell you that. In many ways, this issue is about power. Than Through Sexual Innuendo, etc.
People seek to become a part of groups within groups.
This helps us feel special. One way this is done is by being part of a group that teases each other about sex and sexual issues. This is also used as an icebreaker. A really bad icebreaker. Same difference, and just as bad.