Graeme wants this girl to have her body pierced. This girl wants to have her body pierced.
This girl's body belongs to Him now and so, she would have those piercings for Him. There is little she wouldn't do for Him right now.
We are talking both nipples and clitoral hood.
But, this is important. On one level it is about having metal pushed through some intimate places, so that in itself is serous for the person who in reality owns that body. By the that this girl means the one who will suffer the pain, and of course ultimately the pleasure.
On another level this is quite symbolic.
Neither Graeme, nor this girl think that collaring are the right thing for them. This is not a never say never kind of thing, it is about what is right for their situation at this moment (taking account of other relationships etc).
Piercing though to both Graeme and this girl feels like a way He can proclaim His ownership and she can give herself more formally to Him.
When it is done, this girl will say a little more.