In Jainism, strict adherence to the principles of ahimsa (non-violence), brahmacharya (celibacy or chastity), and self-control is emphasized. Sexual activities are generally discouraged for those who pursue spiritual advancement, especially for monks and nuns who observe complete celibacy. For laypersons (śrāvakas and śrāvikās), sexual conduct is to be within the bounds of marriage and with restraint.

Oral sexual activities, including taking sperm in the mouth, are not specifically described in classical Jain scriptures. However, Jain ethical teachings emphasize modesty, self-control, and avoiding indulgence in sensual pleasures. Such acts would typically be discouraged as they are seen as indulgent and not aligned with the path of spiritual progress.

If you seek guidance, it is best to consult a knowledgeable Jain monk, nun, or scholar for advice specific to your situation, always with respect to Jain values of modesty, self-restraint, and spiritual advancement.