it was when I was a jr in high school and at that age your hormoes are raging 24/7 anyway now my mom has always show my brother favoritism but in little ways never understood until that day I skipped track practice wasn't feeling it so I came home about an hour earlier as soon as I walk in I can hear moaning and the closer I listen I could tell it was mom confused because my step dad was at work til 7 so I walked as quite as possible and nothing could have prepare me my mom was stark naked bending over her bed while my brother is pounding away and his dick was huge!!! Every bit of 9" and thick I was transfixed she was asking how much he loves it and telling him how he is the only one that can get her off I was disgusted and shocked mad but also turned on watching her take his dick so hard then he layed down and she sucked him for about 30 mins all while taking dirty to him I snuck back out and then came it loudly I never talked to them about it