How to be indirectly direct??

Recently, we are supposed to do a portfolio for christine's class. It's either you chose to do a new collection, or you use the group collection which we are doing for our final project now. Well, of course doing a new collection will be the best, since we'll be using this portfolio to go out for interview in the future. Now,J wana use our group project to use as her portfolio...The problem here is, I'm the one who drew everything, all the 10 designs!!So, I don't feel that it's quite fair that she's using it for HER portfolio...but, I duno how to tell her...I don't wana spoil the friendship between us, yet I really don't wana let her use my drawings...what should I do??