In Jainism, sadhus (monks) and sadhvis (nuns) strictly observe the vow of brahmacharya (celibacy). This is one of the five major vows (mahavratas) that Jain monks and nuns take upon initiation into monastic life. The vow of celibacy means complete renunciation of all sexual activity, both physically and mentally.

Jain scriptures and conduct manuals (such as the Āchāranga Sūtra and the Uttarādhyayana Sūtra) clearly instruct monks and nuns to abstain from any form of sexual contact, lustful thoughts, or interactions that may lead to sexual desires. This is considered essential for spiritual progress, as indulgence in sensual pleasures is believed to increase attachment (rāga), which binds the soul to the cycle of birth and death (samsāra).

Therefore, the sex life of a Jain sadhu or sadhvi is one of total abstinence, as they dedicate themselves to self-discipline, spiritual development, and liberation (moksha).