When you wake up you find that you are no longer in your bedroom but rather you are strapped to a workbench and you see Michael standing above you, remembering the events from last night you lick your lips, mind completely broken and say "my my, getting a little kinky are we?" Michael just laughs and says "man you turned out great, I've never had a roommate transform this quickly, let alone to this extent before, were you a naughty girl last night?" he asks you and you nod and say "I couldn't help myself! master would not have sex with me sooner so I got anxious" you say.
He smiles at you and says "well how would you like to please your master even more?" you nod at this and giggle as you shout "oh yes please! Anything for master!" just then Michael grabs a syringe and injects you with it and you instantly feel a tugging sensation on your crotch just above your vagina and you moan in pleasure as you see a penis emerge from your groin and grow to nearly twice as big as it was when you were a man. Once it reaches full mast you start flexing your newfound muscles but as you are you watch in shock as it retracts into your groin and disappears leaving behind a small opening where it once was.
Michal laughs and says "yes! my elixir was a success!" looking at him confused you ask him "what elixir master? what have you done to your pet?" and he smirks at you and explains "you are now a shemale, but not just any shemale you my darling creation can sheathe your penis into your crotch and it will invert and practically disappear into your crotch meaning you wont have to worry about having a unwanted bulge in your tight panties my dear. Hearing this your eyes instantly light up with delight and you say "does this mean master wants me to pleasure him too?" and he says "yes it does dear".
Just then Michael takes out a bottle and downs the whole thing and you watch in horny bliss as his body transforms into that of a hermaphrodite. He retains his male form but gains large muscles and a six pack and between his legs forms a vagina only this time his cock gets much larger than even your sheathed one and is hangs down between his legs menacingly, you stare at it and begin to drool. he then asks if you are ready for the best sex of your life and you nod at him and yell "yes please! use your pet master!" He then climbs on top of you and you unsheathe your penis, he then enters your vagina and you do the same for his and you both begin pounding each other in a heated scissoring while both being penetrated by each other.
You both reach several orgasms and make love to each other late into the night, You then wake up the next morning back in your bed but still with all the changes from yesterday.