Brother sister prom date

Looking to do a brother and sister role play where it is your senior year and your date for prom backs out at the last minute. Devastated, you come to me for help and ask me to go in his place. I end up saying yes and we go to prom together and end up having a great time. We then spend the night after prom together and have even more fun! M looking for F. You be 18 I’ll be 20.