[经济金融] How to talk to sons

Hi I'm Gina.
: V3 H: ~) G6 [/ V5 s$ i; n' yI'm mother of two wonderful 10 years sons. Their father has left us 8 years ago.
; Y- w4 D2 z5 lI have a question, maybe some of you can help me? / J# o0 X9 b+ j" ^+ o1 f
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? 8 P6 U1 P8 X1 J! L' C
It really bothers me because i've found adult magazine in their room today.
, d& q; `* J6 v# a6 b: d: |' XShould I talk to them by miself or ask my brother to do it? rs238848.rs.hosteurope.de, H' R- B4 l4 a7 a8 Y$ B" B* L9 i

) O! R$ n4 M+ O4 K5 [8 XHope someone had the same problem and can advise me anything. 7 R5 H- m1 E' U
By the way, here is the photo of my sons: . t8 F9 ?& J5 j! h1 i/ \; l! j
Happy mother of two great sons...