[经济金融] How to talk to sons

Hi I'm Gina. 5.35.249.645 L* q( U* F1 L7 x
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago.
* P) \# f; w( N+ _! z& M! XI have a question, maybe some of you can help me?
6 A7 [7 N- X8 p3 r/ L% W5.35.249.64At 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 P9 g8 M3 {! \7 y
It really bothers me because i've found adult magazine in their room today.
, H0 r/ o7 e  Z. p; A0 d; OShould I talk to them by miself or ask my brother to do it?   L0 J1 Z( E& O$ D# J

7 w+ u8 T& p) g  ?Hope someone had the same problem and can advise me anything. $ U+ i9 N0 H6 g. ^5 F6 M+ x* ^
By the way, here is the photo of my sons: 5.35.249.64+ m' P+ x4 r4 o
Happy mother of two great sons...