My Cheating Husband Can Either Be a Cuck or Lose Everything

So I have known my husband fucks around on me for most of our marriage, knowing that our pre-nup has an infidelity clause I decided to hire a PI to document his cheating. After I had my ammunition I moved onto phase 2, have him catch me fucking some one else, and make him my cuck! So today at the gym I found the perfect bull. I started flirting, and told him I was single and just looking for a quick fuck. So we go back to my house, and start into things when I accidentally slip and mention my husband. I cover myself by saying we have been separated for a long time. He accepts that and keeps on fucking me like I haven't been fucked in FOREVER. Not long into it, my husband comes home for lunch (as expected). He walks into the room and immediately sees me taking a fat cock in doggystyle. At first my bull tries to pull out and leave, but I demand he stays inside me, and demand my husband sits and watches.