Help!!

I am far from your typical girl.. I have NO interest in having a wedding. Me & my fiancé have both been down that road before & instead have opted to go to the courthouse to get married. With that being said, his sister wants to throw us a small “reception.” This will consist of just family & a couple of close friends. I wanted to send out invites but am having trouble wording them! We would get married that Friday & then have the reception that Saturday evening. Any advice or wording suggestions??