Adult only. Private by design.
What a co-host can do
A co-host helps you run the night. They do not start a second one.
The short answer
A co-host can use the dashboard with you. They cannot delete the party or remove the original host. Message host lands in a private thread that you and the co-hosts see.
Your host invites friends. The host invites friends they'd love to have there. One private link per couple. A co-host can add someone to that same list. They do not start a second list.
Adult only. Private by design. You confirm you are 18 or older. A co-host can check people in with you. Guests cannot check themselves in. A private no stays private.
The private note reaches both of you
Guests do not message each other in private. There is no guest-to-guest thread. A question about the area, the end time, or the format goes to Message host. You and your co-hosts see that note. The group chat does not.
Answer it as one host. Two replies that disagree are how a guest packs for the wrong night. If you have not decided, say you will answer when you have.
A one-sided yes stays hidden. A co-host does not read a list of nos into the note, and does not carry a flirt from one guest to another.
One party, one format
The night is still a key party, a play party, or a speed date. A co-host does not announce a different one after people leave home. The original host still owns the party. Only that host can delete it.
They help at the door and in the note. They can add someone to the same list until that list locks. They do not start a second party. The people who said yes said yes to the night you already named.
If you would not want a co-host to see the note, do not add them. Message host is shared with every co-host on the party.
The reveal does not change
All mutual-yes matches are revealed the same way with a co-host in the room. A co-host does not invent a fourth night, and they do not type a pair in by hand.
A key party shows one Play Partner at the same time. On that night the dashboard can re-roll a full pairing. A play party has no pairing to re-roll, and matches stay hidden until the host reveals them. A speed date is short rounds, then yes or no. A match on a speed date needs both couples to say yes.
FAQ
Can a co-host delete the party?
No. A co-host can use the dashboard with you. They cannot delete the party or remove the original host.
Who sees Message host?
The host and the co-hosts. Guests do not. There is no guest-to-guest thread. The group chat is still one room.
Can a co-host invite a separate list?
No. A co-host can add someone to the same list, on the night you already named. They do not start a second party.
Does a co-host change who matches?
They do not type a pair in by hand. On a key party, the dashboard can re-roll a full pairing. A play party has no pairing to re-roll. All mutual-yes matches are revealed by the format, and a private no stays private.
Which night are they helping you run?
The one you named. A key party shows one Play Partner at the same time. A play party keeps matches hidden until the reveal. A speed date is short rounds, then yes or no.