So a nerd named bill who has spent the last year in his room playing guitar hero goes to a concert to see the lead guitarist didnt show up. His brother, the lead singer sees him and has him take over as lead guitarest.
Oddly, he plays amazing power ballads and blows the crowd away.
His brother, knowing he had done noting but guitar hero asked how he played so well. he replys "i got lessons from mom"
Bills brothers girlfriend who had seen the preformance asked bill to come back to her apartment. They have sex (duh) and bill does well, making it like heaven. She too knowing how he spends his time asks "how did you do so well" bill replys "i took lessons from mom."