Birthday Suit (Patreon)

When she graduated from high school 8 months ago, she decided she wanted to get "super buff." As it turns out, her body responds unreasonably well to exercise, and now, on her 19th birthday, she is a muscular titan. Her we see her in the midst of celebration while in nothing but her birthday suit. A couple of her close friends decided to have a particularly memorable birthday for her and intimately explore her new rippling physique.