Want It Dirty

My boyfriend doesn't know that I watch that much porn. sometimes I watch it for hours while I finger myself. I watch it ALL but lately I've been watching ass to mouth porn which I know isn't something regular for most people or couples but i kinda wanna try it. I don't know if i should tell him I want to do it or i should leave it for a spure of the moment deal. My boyfriend loves giving me facials so I think a little surprise of ass to mouth with him finishing on my face would make us both super happy.