Your girlfriend Claudia comes to you just before she heads off to the gym and is complaining about how hard it is to make her muscles grow. Claudia mentions a woman you both met on holiday a few months ago, and says she shared a tip about how she grew her muscles so big – she swore that getting as many loads of cum as possible let her absorb the hormones she needed to grow bigger! It had to be on her skin though – if she swallowed it, digesting the cum destroyed it. Claudia knows it’s your boys night, which is why she’s just about to head off to the gym, but before she does… would all your friends maybe be up to jerk off all over her, and cover her in cum?? Honestly, the idea turns you on so you agree, and soon your girlfriend is on her knees being drowned in multiple huge hot loads, all of them dripping off her tits and onto her abs and thighs. Claudia comes come a few hours later excited about how well her workout went, and she swears that her muscles feel bigger already…