Didn't we all when we started our adventures in Thailand. Don't worry, you will soon 'man' up and look like a hairy coconut in a few years time.(i've never been to BKK other than suvarnabhumi airport!) I look like a 16 year old and i bruise like a peach..
If I remember, marriage has nothing to do with it so long as your name is on the birth certificate, you can get the boys dual nationality/passport.
The 'expert' will reply soon; be patient.