Hmmm....
For FTM's, since you are what you eat, eat nuts and weenies. Quit eating chicken legs since, as a man, your legs have to every now and then quit working so you can ask your wife, "Honey, while you're up would you..."
For MTF's, eat cow eyes so you can have eyes in the back of your head. But eat eyelids too since your rear facing eyes must be closed when backing your car.
ROTFL!