I can't understand how humiliating or embarrassing a spouse might encourage harmony in the relationship. However, you didn't put up enough options ... I've always felt it a woman's choice where her lovers put their cum, but personally I believe it should go where it was meant to go, in that tight, warm, wet pussy. As far as my reason for that, I can say most emphatically that it isn't so I can eat that cum out of her. But, fucking a well-used pussy is an extra-ordinary sensation in itself.