Is it permissible for spouses to take turns wearing transparent clothes before intercourse, for the wife to place her finger in her husband's anus, and to suck his breasts in order to change the routine?

It is not permissible for a man to wear women's clothing, nor for a woman to wear men's clothing. This is an imitation that is forbidden by Islamic law, and the Prophet, peace and blessings be upon him, cursed men who imitate women and women who imitate men. A man wearing women's clothing, even if infrequently, can lead to effeminacy. As for the desire for variation in matters of enjoyment between spouses, this should be done through permissible acts, not through acts that violate Islamic law and natural human disposition (fitra). It is not permissible for a wife to insert her finger into her husband's anus, as this is an abominable act that violates Islamic law and natural human disposition, and contradicts chivalry and masculinity. However, there is no harm in a wife sucking her husband's breast.