There is every indication that my fiancée and her bff let themselves be fucked by two old guys in their 50s during a one night stand in the men's hotel room after a girls' night out! The girls were both 22 at the time, so there was an age difference of about 30 years!
Before we met, my wife was a part time ...... in Hong Kong, late teens onwards for nearly 10 years. She says most guys were in 30s-40s, but some 50s-60s and even a few in 70s.