In Jainism, sexual conduct is governed by ahimsa (non-violence), self-control, and the duties of the householder. Sexual activity is generally permitted within a committed, consensual marriage as long as it does not cause harm, obsession, or impurity, and it respects dharma and fidelity. However, Jain texts place a strong emphasis on restraint and non-harm, and many teachers caution against indulgence that could lead to attachment or harm to oneself or others.

There isn’t a single canonical ruling that explicitly banning or endorsing oral sex; opinions can vary between Digambar and Śvetāmbara traditions and among later Jain scholars. If you’re seeking a definitive stance, it’s best to consult a trusted Jain teacher from your tradition.

If you’d like, I can try to find a specific digest or quote from Jain texts or trusted Jain scholars that addresses sexual conduct within your tradition.