Q. Saliva swapping, is it allowed? Is kissing allowed with saliva?

A. Between humans that are not contagious, persons not having transmittable diseases, sores, etc. saliva swapping would be allowed. To cause harm to another human would be forbidden. To transmit anything contagious intentionally would not be allowed. Saliva of a human is pure (paak). Should both partners be married and have swapped saliva in a responsible non-obscene manner, sharia would allow this action to be a permissible.

If saliva is placed upon another as a result of shared intimacy between halal partners, this too would be permissible.

We are not saying that humans have control over transmitting diseases. We are merely articulating the need to take human feelings into consideration. Where it can be proven that one would transmit a negative factor upon another, they should certainly abstain from adverse actions.

Allah Certainly Knows Best.