Here is a simple Jain view on the husband–wife sexual life:

• For lay Jain households (householders), sex is ideally kept within marriage. It is seen as a normal part of a committed relationship and a means for mutual love and procreation, not for exploitation or harm.
• The key virtues to follow are self-control and non-violence (ahimsa). Sexual activity should be consensual, respectful, and not exploit or harm the partner.
• Jain ethics for householders include the five vows (mahavratas are for monks; lay vows apply as guiding principles): non-violence, truth, non-stealing, celibacy (interpreted as fidelity and self-control), and non-possessiveness. In practice, this means faithful, modest, and orderly conduct within marriage.
• Monks and nuns take complete celibacy (brahmacharya). They do not engage in sexual activity; this is separate from the duties of a householder.
• Differences between Digambar and Shwetambar traditions: both traditions generally permit sexual relations within a lawful marriage in the lay path, emphasizing fidelity, consent, and non-harm. The exact scriptural emphasis and interpretation can vary, but the core principle—non-harm and fidelity within marriage—remains shared.

If you’d like, I can give a simple, respectful summary in Sanskrit/Prakrit terms or point to specific Jain texts that discuss household ethics (kevala-sutra, naya, or Jain code of conduct for householder).