Should I present an opportunity to my sister to see if she'd consider us having sex? Women...be honest about the scenario ill give n try...?

Ok, so I've read a lot of the QnAs on here about brothers n sisters that have sex with each other. Too bad they aren't all real or true. I have not ever had sex with my sister, but I really want to!! i would like some feed back from those who have had sex with their bro or sis. And from women in regards to the scenario I will give and how ud react n how my sis would react.

Her and I are both adults. I early 30s n her late 20s. I kinda always thought she might be into it but too scared to try. My idea to see if she would is to basically let her see my dick hanging out of my underwear 'accidentally '. Based on her reaction ill know if its a yes or a know. I could say to her regardless of her response -you saw me, let me see you.

Ladies if you saw ur brothers dick hanging out dont you think for a brief moment you'd get turned on?