Lilly is pumping up her granny biceps with the exerband, slowly bringing it up, squeezing her old muscle. She starts with her left biceps, then moves to her right. The soft old granny skin moves as her muscles roll up. Around the bend of her elbow, it is particularly nice to see. By the time the clip ends, both biceps are jacked. Granny Lilly is ready to show them off, her elbow on the windowsill.