There are two tattoos on the girl.
One is permanent:
It is emotional.
One is not:
It is physical,
And it will fade and die over time,
Like her body will,
Like her love will,
Like her mortal world will,
against the infinity,
Of immortal stars.
(I don't know why, but I just came up with this this morning and I like it. So here it is. I might post it on my website eventually.)