As I guessed,it was a long and hard talk.
My parents were surprised we suggest making Emilie wear a chastity belt,but liked it.However,they would have prefered it was,if not permanently,at least everytime we spend time together,which was out of question for us.We talked a long time about it,and it was not always easy to stay calm,polite and respectful(but necessary,otherwise the talk would have been ended and I would have been punished).
After a long talk,we agreed to a good,even if not perfect,compromise.
-Emilie and me will be allowed to share a bed at night,if we both are wearing a chastity belt;
-Emilie will have to wear it too if we go out on a party with a late curfew(defined as over midnight);
-Emilie will have to keep her chastity belt on if she stays at home after a night together,if I don't have to go to work.
The second rule is made,partly,to be sure we don't use our parties to "other things" together,and,as she often sleeps at home after it,to avoid to wake my parents to lock us in our rooms,or,after she get her chastity belt,to lock it up on her,before going to bed.
The third one was,in our opinion,unnecessary,but we decided to accept it,to find a compromise not too bad for us.It will prevent us to have sex together when we're alone at home during the whole day(but limited to the cases we spent the precedent night together too);it is used for the same purpose that one of the reason for which I've to wear my thigh bands and chastity bra during the day if I stay alone at home,but by "closing" the possibility to still give an orgasm to Emilie.
My rules about chastity and sexuality doesn't change.
We're not happy about the second and third rules,but we used the fact we accepted it to have some good side advantages.
Firstly,Emilie will have a chastity belt(My-steel,cable one,with secondary shield,like mine),but no chastity bra nor thigh bands.Secondly,I won't have to wear the chastity bra nor the thigh bands when sleeping together(they wanted it,but I argued it was used as a(hard)punishment,and I should not be "punished" for following the rules when sleeping with Emilie,and they agreed).Thirdly,Emilie can sleep at home more often,but I've to be able to wake up on time and have slept enough to be able to do well at my work,and for the chores;and we have to ask for permission before,each time(my parents can give a "no" without explaining the decision each time,but they promised me they'll be fair about it).
Finally,it was not accepted right now,my parents want us to think about it for 2 weeks,and,then,telling them if we still agree to the rules.If yes,my mother,with my help,will take Emilie measures,and order one for her.Of course,only my parents will have her keys(they don't like it,but accepted,no other good possibility).One will be in a box for her,too(like mine).
So,not a too bad outcome...We got the rule we wanted,but more strict ones too(we were not surprised,we guessed we would have to accept some unwanted rules to get the one we wanted),but compensated by some advantages too.So we will think again during the next two weeks,as my parents asked us to do,but we'll probably agree.