📜 Question: Can the husband be breastfed by his wife (as part of sexual activity)?
📝 Answer: There is no problem in that. If he sucked her breast, it doesn't harm him, even if he swallowed some bit of breast milk it doesn't harm (it doesn't transform him into her "foster son"), because breastfeeding the adult does not affect anything, according to the majority of scholars. Nonetheless, it is better for a man to avoid it, specially if there is no need for it.
A husband's act of sucking his wife's breasts whether he does it playfully, as part of foreplay, or to show affection, doesn't harm him even if he was able to swallow some breast milk. She still remains as his wife and he doesn't become his son through breastfeeding. However avoiding it is better for the husband and wife.
From the Fataawa of sheikh AbdulAziz Ibn Baz (May Allah have mercy on him. Ameen.)
~•~
https://binbaz.org.sa/fatwas/25634/%D8%AD%D9%83%D9%85-%D8%B1%D8%B6%D8%A7%D8%B9%D8%A9-%D8%A7%D9%84%D8%B2%D9%88%D8%AC-%D9%85%D9%86-%D8%AB%D8%AF%D9%8A-%D8%B2%D9%88%D8%AC%D8%AA%D9%87
https://youtu.be/2jLq194Ossw
