Agreed, it is mental but more then that. Watching my wife with another man inserted into her very wet pussy...stroking till he just cannot hold back any more is so hot to watch and with our new guy I am allowed to also insert him into her and enjoy touching and licking while he does it is one of the greatest things a cuck can do for both the bull and wife. When he finally does cum it is both the smell, taste and feeling that does it for me. We try to have 1 at a time that allows this...as an added bonus the new guy also strokes me while I reclaim her due to him also enjoying her and I fucking and the cream pie I deposit so it is currently the best it has ever been for us.