Justin is having treatment to enlarge his penis and step-sister Belle is showing two student nurses how to use the penis pump. After she demonstrates, the two pump away on Justin's cock, making him very embarrassed as he gets a large erection. Nurse Belle removes the pump and examines their work before explaining they need to empty his balls to ensure he can still ejaculate. As the three girls jerk his cock, Belle lifts his head so he can watch his dick explode in front of them!