Christeen: Yes,you absolutely MUST, young lady!

Look darling, my brother is a very handsome man. He's just a few years older than myself and i know he is exactly the sort of gentleman-friend my little princess needs right now. And you will of course behave as the perfect delicate and demure young miss you have now become and be very very sweet to him or you will be punished severely...............But don't you worry your pretty little head about that now darling, i'm fairly shure that before the night is over, as this attractive masculine man sets your little girlish heart into flames with delightfull thoughts of love and submission, you yourself will be yearning for his  manly attentions and kisses like an anxious virgin bride on her weddingnight...........
 

Don't be scared, honey. Your beloved aunty has taught you to be a very pretty girl, now uncle Bob will show you how it feels to be a romantically inclined young lady who is desperately attracted to a masculine older man..............

~

P.S. My dearest Christeen, it's actually a present from
your dear mother, as when i spoke to her on the phone
and told her about your date she insisted you should
have the appropriate wardrobe and accessories for
such a wonderfull occasion......She has always been
quite fond of our brother and she wants you to look
especially pretty and sophisticated for him......

~