What would go brought your head?

If your husband said while receiving a BJ he wants me riding him while another man licks his nuts. Then a step further. He would have a threesome with me, 3rd person being a man. And he would fuck that guy if it turns me on and he would let that guy fuck him all if it turns me on. If it turns me on??? (No not really) but i feel like it turns him WAY on??? This is beyond pegging which we do and have enjoyed but to hear my husband express actually wanting to fuck a man or be ducked by one I’m like whaaaaaaaaat hold up. pump the brakes! How would you feel if this was your situation?