Do you think conjoined twins should be able to have separate marriages?

They are each individual.

Why not?

The original Siamese twins both married

They are two different people who, depending on where they are joined, can have very independent lives.

If they and the spouse have no problem with it, why is it any of our business?

Of course. Just because they are physically joined doesn't mean they are not separate people.

Always they have every right you or I have

Would that be a 3-some or a 4-some?

Yes

They could make a great porno 🤔

Imagine them giving head!!

Yes

Lol you twisted mind