[经济金融] How to talk to sons

Hi I'm Gina. 5.35.249.64, |  A( m9 G- K; {
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. ! Q. F5 b/ s+ q8 \/ ]  w
I have a question, maybe some of you can help me?
; {7 p& w0 U  S5.35.249.64At 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?
& |! _: Z' m9 KIt really bothers me because i've found adult magazine in their room today.
' P4 h6 }5 W: F5 Q人在德国 社区Should I talk to them by miself or ask my brother to do it? + l+ R# I/ X$ r

* Z7 ~% S  `  J/ }& b1 H' p7 A5.35.249.64Hope someone had the same problem and can advise me anything. 5.35.249.641 b7 u4 [0 v! U5 i. d. s. E; O
By the way, here is the photo of my sons:
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Happy mother of two great sons...