The Transfer Ring

Character info:

• James Thomson - you, 180cm tall, 21 years old, in your final year of university.
• Phoebe - 165cm tall, just turned 18 and started university, your little sister. She's blonde, busty, beautiful, and nerdy - a lethal combination. Unfortunately she's also very bitchy and for some reason seems to hate you.
• Leah - 23 years old, your big sister. She's got brown hair and is also very pretty. She's got smaller breasts than Phoebe but she's also taller (175cm) and much more friendly.
• Jennifer - 39 years old, 158cm tall, your mother, had her first kid as a young teen.
• Harvey - 52 years old, 190cm tall, your father, regional manager of a large corporation

When going through the items you'd inherited from your late grandmother last year, you came across a small envelope with a ring inside of it.

Dear James,
By the time you receive this I'll be gone, but I hope you won't be sad as I've lived far longer than you may think I have. I've grown tired of life and had intended to destroy this, but I think you deserve the chance to try it out for yourself before deciding whether or not to destroy it. In order to use it, just wear the ring and think about someone while rubbing it as quickly as you can. Please live your life to the fullest, my favourite grandchild.
Love from Gran

Not understanding the purpose of the ring, you had set it aside and forgotten it, but one warm summer's Thursday morning, you decide to follow the instructions. Wearing the ring as instructed, you start rubbing the ring with your other hand while thinking of the first person who happened to come to your mind, your father. Suddenly the world begins to spin, and in less than a second your vision brightens as you realise you're in a different room to the one you'd expected - the bathroom, standing in front of the toilet.

You feel different. Stronger, bigger. You realise you're holding your dick and pissing into the toilet, but it feels a lot different. You look down and almost piss on the floor when you see a much larger dick than you were used to - it had to be at least 8 inches long, flaccid! You hurriedly finish your business then rush to the mirror. With a gasp you realise that you've become your own father!

This is weird. This is too weird. Covering your face while trying to comprehend what has happened, you realise you're wearing two rings - one being your wedding ring, the other being your granny's ring. Somehow it had transferred with you! Without hesitation, you start rubbing it again and think of yourself and your own body. The world spins again and you find yourself back in your room. Sighing in relief, you contemplate what you want to do next.