So this older guy goes to the doctor asking for a prescription for 'Viagra'. The guy asks for a large dose of the strongest variety. The doctor asks why he needs so much.

The guy says that two young nymphomaniacs are spending a week at his place. The doctor fills the prescription. Later that week, the same guy goes back to the doctor asking for pain killers.

The doctor asks 'why, is your d**k in that much pain?' 'no', says the guy, 'it's for my wrists - the girls never showed up!'