[经济金融] How to talk to sons

Hi I'm Gina.
4 v( K  J; p4 N) _  l, U! bI'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. rs238848.rs.hosteurope.de' p8 @3 V' _9 l, O5 m
I have a question, maybe some of you can help me?
4 ^" @6 F& O7 X  pAt 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? 2 d. l+ F0 _7 ]6 K( j9 v
It really bothers me because i've found adult magazine in their room today. 人在德国 社区! u# U4 }" E: I9 p& r5 f7 c2 o- }
Should I talk to them by miself or ask my brother to do it? 9 g8 N0 N% C: r

" d4 I% @5 k0 Y- I- BHope someone had the same problem and can advise me anything. ! z$ F) [' x- n7 b! s
By the way, here is the photo of my sons:
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Happy mother of two great sons...