[经济金融] How to talk to sons

Hi I'm Gina.
0 e( w! e( k% w) J3 X' fI'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. ; W3 a! X* ^0 j) \
I have a question, maybe some of you can help me? 人在德国 社区- J- p* K5 N& S0 y" b# g
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?
) q, C. O2 c# \It really bothers me because i've found adult magazine in their room today.
3 D% b4 m8 r, tShould I talk to them by miself or ask my brother to do it? www.csuchen.de" l$ Z! V4 ]8 F- N, d3 D2 z

3 S4 W5 y: l' n+ j/ h$ B/ cHope someone had the same problem and can advise me anything.
; S9 d6 p; ]/ k! l, R! R# g+ V2 wBy the way, here is the photo of my sons:
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Happy mother of two great sons...