She loves her boyfriend so much that she realized the biggest fantasy of his life - to have his penis sucked while being at the rock band gig. He is a happy man now.
Now there is some real class. Any girl that would blow a dude in the middle of a crowd of people is a complete fucking cum-pig, and any dude that would actually film some fucking cum-pig blowing him at a concert is THE definition of a low life. Absolute ZERO self respect.