Is it permissible for a wife to discharge semen using a pillow in front of her husband?

If a woman masturbates using a pillow or similar object while her husband watches, this is forbidden masturbation. It is permissible for each spouse to enjoy the other's body, however, it is obligatory to avoid anal sex or intercourse during menstruation or postpartum bleeding. The marital relations and enjoyment must be within the bounds of Islamic etiquette and noble morals.