Reply To: Inviting my wife’s lover to stay over on our wedding anniversary alone

You could make it a ceremony where you anniversary gift to her is to renew your vow of cuckoldry.

Have a wedding where you state your devotion to her and your cuckoldry. Joe could be the witness and take her afterwards as you leave the house for the night.

While you wait to return your wife should decide where you go.

Just my thoughts