[经济金融] How to talk to sons

Hi I'm Gina. 人在德国 社区6 h3 J$ v- \# M5 g- c
I'm mother of two wonderful 10 years sons. Their father has left us 8 years ago. rs238848.rs.hosteurope.de5 f% t2 f  s8 D6 e: ^/ `' n% p3 N
I have a question, maybe some of you can help me? ; q6 N4 G6 o/ I3 P' u) C8 R8 @
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? ( J4 Q) J9 }4 O0 R, D/ M3 p1 ~1 {! K
It really bothers me because i've found adult magazine in their room today.
8 R6 g$ k/ [7 E, Ars238848.rs.hosteurope.deShould I talk to them by miself or ask my brother to do it? : U& V% F8 D  L5 M
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Hope someone had the same problem and can advise me anything. # K0 V6 t1 k; S$ i: j
By the way, here is the photo of my sons: # C* a; J  @+ z
Happy mother of two great sons...