The age gate asks visitors to confirm they are twenty-one or older before reading on, and for couples both partners, not only the one booking, must meet it.
This is a site for adults, and the house draws the line at twenty-one. The age gate is the bar that appears when you first arrive, asking you to confirm you are twenty-one or over before the site opens. On a couples site it carries a second meaning: it is not only the person holding the phone who needs to be twenty-one.
A couples booking puts two guests in the room, so both must be twenty-one or older. Neither can vouch for the other by clicking through. If one partner is younger, the booking cannot go ahead as a couples session, and the office will say so plainly. The same applies to friends travelling together who book a shared session.
The same threshold holds for the therapists: all forty-five are twenty-one or older. The threshold is higher than many visitors expect, and it is deliberate: it keeps the house clear of any doubt about age on either side of the door.
The gate is a statement you make, not an identity check. It sets the expectation before a single page is read, and it is repeated on the age verification page.
Being old enough is not the same as wanting to be there. A couples booking only works when both adults have chosen it. If one partner is planning a surprise, make sure the other would welcome it; the anniversary booking entry has more on surprises that go well.
Questions about the gate or about who can book are answered on the questions page.