M.B.
I have no teenagers yet, but I was raised in a very "strict" Christian household. I remembered liking boys at age 10, but started wanting to date probably around age 13...
Well, because my mother was SO strict I was frightened to talk to her about ANYTHING relating to sex(which I knew NOTHING of), boys, dating, etc... I was also really shy, so I did not dare even talk to a boy I liked. BUT- the impression that my mom gave me of being entirely "intolerant", caused me to not even tell her the day I got my period! (which so coincidentally happened on the first day of school @ a new school, where I knew NO ONE).
I was a very responsible girl in high school: great grades, NO interest in sex (just interest in spending time with boys), NO interest in drugs, etc... and I felt that my mother was not even giving me a chance to show her that I WOULD be responsible in certain situations. Well, I didn't go on dates, go to parties, etc... As I got to be an older teen, no matter what guy would ask me out, I'd turn them down. EVERYONE thought I was a snob- when in fact I was super fearful of my mother. It also turned out to be that I would not talk to her about ANYTHING, because I thought that she was so judgmental and un-trusting...
Well, my point is that be careful to always give your kids the impression that even though they are not allowed to do things a lot of other kids can do (because it is definitely a fact that there are kids younger than yours doing WAY worse, unfortunately), that they can always talk to you about things, and not feel that they are "bad" for even wanting to kiss someone (because that IS very NATURAL at their age). Just also make sure they know WHY you are setting these boundaries.
Be VERY open with them! And PLEASE let them think that you trust them!!! It could backfire on you (hopefully not), and then they will hide things from you at all times possible. I remember high school too clearly (I hated it), and knew of kids that literally go "all the way" in the bathroom, under the stairs, anywhere- kids that age are very smart in the ways of being sneaky. Keep everything open and let them know that you trust them! -While STILL keeping your guidelines! They do seem to be a bit strict, but at that age they need the guidance- it's MUCH better than allowing them to do whatever they want to, because at that age hormones take over, and they have the "I'm invincible" mindset.
Again, keep communication open, tell them that they are not "bad" for wanting to kiss or do other things with their current "interests", but that they need to practice self control, etc. Tell them about how much you love your husband, but that certain things are reserved for marriage or adulthood (whichever you think). They need to see that you understand them, and such...
I don't know all of what you have told them, I'm just coming from the end the spectrum of what happens when you AREN'T trusting or open in a strict environment...
Hope this is helpful. Sorry for the loooong explanation
Rebecca