[经济金融] How to talk to sons

Hi I'm Gina. 1 X7 q% x7 ~/ e% d, M
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago.
- l' u. }# E2 p! J. S: L, `! @0 J6 nI have a question, maybe some of you can help me?   a. i& U4 i: X  ]
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?
4 C7 Q3 W- K* U" _( UIt really bothers me because i've found adult magazine in their room today.
- b7 O% i% m1 S5 l) @+ `$ x# j& G人在德国 社区Should I talk to them by miself or ask my brother to do it? 人在德国 社区2 T3 B6 _+ o0 M0 f

# L) T3 [5 _6 J$ @: ?Hope someone had the same problem and can advise me anything.
  Z5 ?: L, y: s( ^5 {& U8 bwww.csuchen.deBy the way, here is the photo of my sons: / P4 K) ~% n4 z, J0 t9 w: o
Happy mother of two great sons...