In Jain dharma, the question is not “which type of sex is OK,” but “does this increase or decrease passions and attachment?”

Very simply:

1. For monks / nuns (sadhu–sadhvi):

- Absolutely no sexual activity at all – not by body, speech, or even thought. - So any kind of sexual act, including oral sex, is completely forbidden.

1. For lay Jains (householders):

- The vow is brahmacharya anuvrat – sex only with one’s own lawful spouse, with restraint, mainly for family life, not for indulgence. ( jainknowledge.com) - Any sexual behaviour that: - strongly excites passions (kashāy), - treats the partner as an object for pleasure, - becomes an addiction or lustful experiment goes against the spirit of Jain brahmacharya, even if technically with the spouse.

1. Where does oral sex (blowjob) fit?

- It is purely pleasure‑oriented, highly stimulating, and usually done only for sensual enjoyment, not for reproduction or simple married life. - From a Jain point of view, this intensifies rāg (attachment) and kām (lust), which means more bondage of karma, not spiritual progress. - Therefore, it is not in line with Jain ideals of brahmacharya, even for married people.

1. Core Jain view:

- Jain ethics always move from more indulgence → less indulgence → full celibacy. - The ideal is to reduce sexual excitement step by step, not invent new forms of it. - So a sincere Jain aiming at dharma and inner purity should avoid acts like oral sex, even within marriage, and gradually simplify sexual life.

If you want to understand the Jain view on sex and brahmacharya in general, you can read more here