In Jainism, sexuality is guided by self-control, purity, and non-attachment.

Main principles

• Brahmacharya is the ideal: celibacy and complete restraint over sexual desire.
• For monks and nuns, strict celibacy is mandatory.
• For householders, sexuality is permitted only within marriage and with discipline, modesty, and responsibility.
• Lust, sensual indulgence, and uncontrolled desire are seen as causes of bondage of karma.
• Jain teaching emphasizes reduction of passion, because attachment to sexual pleasure strengthens moha and weakens the soul’s progress.
• A Jain life aims at vairagya: detachment from bodily pleasures.

Ethical view

Jainism does not treat sex as sinful in itself for householders, but it teaches that it should be:

• restrained,
• respectful,
• free from violence,
• free from exploitation,
• and never driven by excessive passion.

Spiritual purpose

The deeper goal is to move from sense-pleasure toward soul-purity, so that the soul becomes lighter, more disciplined, and closer to liberation.

If you want, I can also explain:

• brahmacharya in Jainism,
• sexual ethics for householders,
• or the 12 vows and where sexuality fits.