My wife hat both, the young bull for quickly fuck with energy and power, the mature one is for romantic, massage, nice discussion, he prepare her the whole the day bevor she got fucked.
My wife is 55 year at the time, she had had a toy boy 30 years old, they have met one to two times a week, every time when she comes back home, she is sore and for next 48 hours no sex.
She was balanced and happy after every meet. Happy wife, happy life