Out of Care and Concern for my Brother

My brother called me up frantically asking if I could pick up a prescription for him. Since he had to pick up his girlfriend from the airport, he would not be able to make it to the pharmacy before it closed.  Whatever medication it was, he could not wait until the next day to get it.  So I obliged, and agreed to pick up his prescription for him.

Before calling me to get it for him, my brother called my parents' house to get my phone number.  Of course, my mom questioned why he wanted my number so my brother told her about the prescription.

Now, my mom was unaware that my brother was on any kind of medication and was rather curious what he was taking especially because he has a reputation for misusing prescription medications.  As any mother would do, she phoned me up and told me to be sure to let her know what this medication was that my brother needed so urgently. 

After I picked up the prescription, I immediately wondered how on Earth I was going to tell my mom what I had discovered. 

Would I be breaching my brother's confidence?

Would he want his mom to know (let alone his little sister)?

Could I keep a straight face when I told my mom that my brother was taking........


Viagra?