Dear Harry,
I hope the letter's behaviour did not startle or disgust you. It is a little spell that Mother taught me – the exact opposite of a Howler. We call it "sealed with a kiss".
Yours for life,
Ginny.
Dear Ginny,
I never mind being kissed by you – even by proxy and by a piece of enchanted paper. I only wish you could have enchanted it not to do so in my aunt's presence.
Yours just as much,
Harry.