Former Love Island star Molly Marsh took to Instagram to show off her huge biceps, as she gave her followers an update on her fitness journey. The influencer and YouTube star has been keeping her fans updated throughout the week while she has been working hard at a fitness boot camp.Throughout the week, Molly has been sharing what she has been eating, what workouts she has been taking part in and even taking the plunge into her "first ever ice bath". In her latest update, Molly simply shared a snap of her arm as she was tensing her bicep, and it was certainly impressive.