In Jainism, “consent” does not by itself make an action spiritually OK.

The main question in Jain Dharma is always:

• Does this action involve hiṁsā (harm/violence) to any jīva (soul)?
• Does it arise from kaṣāyas (anger, pride, deceit, greed)?
• Does it strengthen attachments and passions, or reduce them?

So even if two people “agree” to do something:

• If it causes physical or mental harm, it is hiṁsā.
• If it increases vasanas, passions, or addictions, it is spiritually harmful.
• If it goes against vratas (vows), brahmacharya, or ethical discipline, it remains a sin from a karmic point of view, even if both are willing.

Consent is important at the social / worldly level, but in Jain view, karmic bondage depends on:

• Intention (bhāva)
• Actual harm done
• Intensity of passion

So: consensual actions that involve hiṁsā, misuse of sexuality, intoxication, or deceit do not become dharmic just because they are consensual.