new BDSM relationship

so a guy has asked me to be his mistress. I am not too sure about my ability to be a dom. I have dominated guys in the past but nothing like a real sub dom relationship Like E wants. so i have been reading up on it. he arrives tomorrow from Quebec andi should meet him shortly after that to see if i am into him and him to me. He is pretty sure he will be into me. This arrangement is definitely going to push some of my boundaries and hopefully his as well. I did want to push boundaries So i suppose i got my wish. lol