Answer

Yes — in Jain Dharma, passionate kissing would generally be connected mainly with Mohaniya karma, because it arises from attachment, desire, and sensual passion.

But no — it is not correct to say it has no effect in any case on other karmas. Jain karma theory is subtle, and actions driven by strong attachment or passion can support bondage of more than one type of karma depending on intention, intensity, and mental state.

Explanation

If both of you love each other and the act is consensual, that does not make it automatically spiritually harmless in Jain understanding.

In Jain Dharma:

• Rāga means attachment.
• Kāma means sensual desire.
• Mohaniya karma is the main karma connected with delusion, attachment, attraction, and passions.

So yes, such an act would mainly strengthen Mohaniya karma.

However, saying “it will not affect Jñānāvaraṇīya karma in any case” is too absolute. Jain teachings do not encourage us to confidently separate karmic effects like that for every situation.

Spiritual Understanding

For a Jain, the main question is not only “Is this love?” but also:

• Does this increase attachment?
• Does this increase sensual desire?
• Does this disturb self-control?
• Does this pull the soul outward toward pleasure?

If yes, then it strengthens bondage, especially through Mohaniya karma.

Takeaway

So the simple answer is:

Mainly Mohaniya karma — yes.
Absolutely no effect on Jñānāvaraṇīya karma — cannot be said.