[经济金融] How to talk to sons

Hi I'm Gina.
& X0 o! @" R+ }csuchen.deI'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. csuchen.de! v* E; ?- I5 S& E" J1 {- F4 I
I have a question, maybe some of you can help me?
& ?9 s; F) V. W9 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?
5 W: L+ B1 l: I4 O1 [& D/ ?It really bothers me because i've found adult magazine in their room today.
2 L- O  l- e: t( K: i$ z( a. bcsuchen.deShould I talk to them by miself or ask my brother to do it? * e5 e+ S+ Q) L( w" M, z( k; [
人在德国 社区7 W2 h" G# l* C# U* R
Hope someone had the same problem and can advise me anything.
6 M2 A4 I6 A' y! `! [By the way, here is the photo of my sons: % V" Q  [. D- ~) p& o: H
Happy mother of two great sons...