[经济金融] How to talk to sons

Hi I'm Gina. , ?9 V% P6 y" T' ~' h4 n
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. 人在德国 社区$ E3 l$ @9 L$ A/ a; d& z0 D0 y: ?
I have a question, maybe some of you can help me? 5 b6 \( T, F$ y2 V7 O
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? 5.35.249.64* ^  b4 \3 q+ L8 s
It really bothers me because i've found adult magazine in their room today. 5.35.249.64# [7 B) Z+ r/ O. V
Should I talk to them by miself or ask my brother to do it? + e6 M+ k9 @& C% V8 V% P) [

- J. K# x* b6 m: M  x2 |. N1 q人在德国 社区Hope someone had the same problem and can advise me anything.
- k0 r# p  u( p! }By the way, here is the photo of my sons: 9 y) F+ c; Z, }
Happy mother of two great sons...