"The study published Monday in the journal Pediatrics analyzed 17,220 public health surveys and found that more than a third of teens who had same-sex encounters identified themselves as straight."
Study: 1 in 10 Teens Has Had a Same-Sex Partner
http://www.aolhealth.com/2010/10/25/10-percent-teens-have-same-sex-partner/
Of course, within religion, gay sex is condemned. In some churches, it could even mean being kicked out of the church congregation and not being allowed back in the church building. Needless to say, some people (not only teens) have committed suicide due to the shame or at times been driven to suicide by teasing and/or rejection of his/her family and/or peers.