As a cuckold, what is the most obscene fantasy you have proposed to your gf or wife? and she accepted?

My wife was with a guy one night with an enormous dick I whispered in her ear to tell him to stick it in my mouth and she did it . I was Very surprised I sucked him till very hard as then he fucked my wife and came deep inside her. Next time I took her to him he was the first guy that we did a double vaginal penetration with the best feeling I ever had was when I felt him pulsating inside her against my cock couldn’t hold any longer and gave her her second load.
Love taking her lovers in my mouth !