I think early teenage years can be very confusing for kids. However, if this happened with my child, I would certainly except them no matter what. Sexuality is very confusing for even adults some time. I think standing by your children and letting them safely explore their sexuality is the best thing to do. I would certainly encourage my children to talk with me about it. If not me then some other adult that you and they trust, pdoc, family doc, school counselors...etc.