Marilyn Jensen is indulging in her favorite guilty pleasure - gaming, when her boyfriend calls her up. He tells her he washed her favorite shirt and put it on the sofa. She joyfully puts it on her "lucky gaming shirt" and gets back to the tournament. Unluckily enough, she's starts making some pretty silly mistakes. She soon becomes distracted by weird symptoms like hot flashes and breast pain. To her surprise, her boobs are noticeably bigger than a few moments ago. She tries to continue playing but soon loses interest as she becomes more ditsy and bigger breasted! MJ then admires her newfound boobs and becomes increasingly horny. She calls her boyfriend back and urges him to come home asap because she's grown some ginormous jugs that she can't wait for him to play with! When he comes home some time later (POV), MJ's breasts are even bigger - and he's fully invested. Maybe he did this on purpose to get his nerdy gaming girl off the console and on to his cock with some giant tits, but we'll never know.