I let my brother touch me

So l have talked about all this previously him taking my panties etc. my mom works nights and it's only us 3 who live here so last night we decided to watch a movie in my bed and I was only wearing panties when he came in my room. We started kinda cuddling and his had was by my privates and I moved into him and started jumping his hand. After that he left and we haven't talked since l'm so nervous you don't understand, any suggestions or ideas appreciated.