When you have a GILF as your partner, no need to worry about pregnancy. Practice lovemaking with and fill her up with all the young sperm you want. Ideal for virile young men.
It is very common for a woman that age to have an impotent husband, but for the woman to still be very sexual and really need a nice hard penis to give her a good deep fucking. Women get grumpy if not fucked regularly. I think this is true in the vast majority of cases. Men that age just can't get it up, keep it up, and perform so the wives are just left frustrated and horny. It isn't hard to find them, just go to the local Y or senior center