[经济金融] How to talk to sons

Hi I'm Gina. , M& c. n5 \) F. c& t, H
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. 人在德国 社区) S/ S# o0 }5 s2 g, P( {4 v* F/ B
I have a question, maybe some of you can help me?
3 N( ^0 g. B/ l5 R$ j0 _人在德国 社区At what age should a parent teach their son about ‘sex’ if there is no father around or would it be better for the kid to have a male family member to do this? 人在德国 社区3 D+ D9 M5 P. b: U: G
It really bothers me because i've found adult magazine in their room today.
/ X9 t% L$ G' {" o/ x, ^Should I talk to them by miself or ask my brother to do it? 人在德国 社区$ w( e$ ?! u) f& p8 ?

4 D7 L4 e% @, _2 w. h' Z) ?8 q5.35.249.64Hope someone had the same problem and can advise me anything.
7 f! D. I" S5 D, Y  M. ?By the way, here is the photo of my sons: 5.35.249.64" w- {# J5 u+ L5 y& l0 i
Happy mother of two great sons...