My Bro

My older bro lives alone in a reclusive area off the grid. He only has him. I know he masturbates and I masturbate. How can I ask him to join me in a session and maybe lead to me just blowing him whenever he wants a blowjob. It’s not like anyone would know his little bro sucks his cock. he lives alone… fantasy question were both over the age of consenting adults… just wondering if you would?