[经济金融] How to talk to sons

Hi I'm Gina.
7 M  ~6 `* e% d1 S" r8 SI'm mother of two wonderful 10 years sons. Their father has left us 8 years ago.
. c. v; n' C% b( B人在德国 社区I have a question, maybe some of you can help me? / ^' R# K- g3 V2 z/ _$ w. D3 T, ~
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? $ r/ }; Q6 F" K) o
It really bothers me because i've found adult magazine in their room today.
% N% H$ x5 U* Zcsuchen.deShould I talk to them by miself or ask my brother to do it? csuchen.de# E. F" A" Q( B1 s. T

3 i8 Z, G: P- L人在德国 社区Hope someone had the same problem and can advise me anything. 1 C' r. m, R2 B
By the way, here is the photo of my sons:
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Happy mother of two great sons...