Why is my brother and sister so annoying?

i don't know what the ***** his problem, yesterday i was just hanging out with my friends and my sister comes up and starts to irritate me, i kept on asking her politely to leave but she wouldn't listen so I got really pissed after 30 minutes of being annoyed by her so I got really pissed and I told her "look Jade, no offense but could you just **** off and go down stairs please?" and then she finally leaves , I was relieved until later then she came up saying "Raphael, Camille's calling you." then I replied "no she's not." then she says "she is!" then I replied "why should I believe you? you already lied about that earlier today." (she also tells lies to her friends and the maids) and then she replied "FINE YOU DON'T WANT TO BELIEVE ME" then she leaves in an angry manner and then after about 15 minutes my brother just shouts "RAPHAEL!! GET YOUR *** DOWN HERE NOW!!" , I kept asking why but he just keeps saying "GET YOUR *** DOWN HERE!!" then I stand up to see what's the problem then he comes up then starts pushing me , I told him "what the ****!!?" he continues to push me then i say "what the **** is your problem man!?" then he says "DAD'S CALLING YOU!" then I say "that's it? why couldn't you have just told me that in the first place rather than coming up here and pushing me?" then he threatens me "or how about I punch you square in the face!?" I got pissed and wanted to kick him down the stairs or beat the **** out of him (I am very physically capable of doing it) but out of not wanting to cause any physical injuries to him ,I just went downstairs straight to talk to my dad.can anyone help or share any ideas on what I should do?