Are marital games permissible that include performing certain sexual acts written in boxes, and is it permissible for a husband to ask his wife to suck or lick his penis?

The basic principle regarding marital games is permissibility, as long as they do not involve anything forbidden. Similarly, enjoyment between spouses is permissible as long as it does not lead to the swallowing of any impure substances, even if this contradicts refined manners.