True,if their relationship is serious,they can talk about it;as a family experience.But I would prefer it is not said to someone before I'm ok with it(and would prefer to do it myself).
Would your brother like his girlfriend wear one too?If they're already intimate together,would he be ok to not have her keys until they're married,even if it means they could not be intimate that way anymore?
Your help could be useful for her,if she decides to wear one.I wonder if she would do it!
I understand how it can be useful for you,when you would talk with her,yes.
reactionary69 Well your family has a spare one in the cupboard so...
Right,it can be used!😉
At least,it can be useful,if she wants to know how it feels before buying one.
And maybe,if @Ines' sister notices someone else using her belt,she would not like it and decide to put it on to prevent it to happen anymore!😉