**Note: Not the author of the other measuring cups chapter just thought I'd make an alternate version using the basis for that chapter**
Lisa hands you the pink cup to drink from while she sips from the blue one. Being especially thirsty, you gulp down the contents of the pink cup. You sit there for a few minutes when a sudden feeling of queasiness overwhelms you. You lie down on the couch and moan as a tingling sensation erupts all over your body.
You hear Lisa moan as well, so you sit up to make sure she is okay. Your jaw hung open at what you saw. You didn't know what shocked you more, the young guy sitting in the chair opposite, or the firm, D-cup breasts sitting on your chest. The fabric of your shirt rubbed against your nipples, and this time you moaned with pleasure. You lie back down as the sensation increases and find one hand sliding into you pants, while your other hand carressed your new breasts. You moan loudly as you begin to pleasure yourself and you can feel it building as you continue but it's than that you feel someone grab the hand you were using to pleasure your new pussy and pulled it away.
You look up seeing Lisa in her new male form standing nude from the waist down, her own erect penis (you'd guess 8 inches) seemingly staring at you. She...err..he has a smile on his face and he tells you:
"here, let me help you with that" You can't resist...no it's more that you don't want to resist as Lisa lines up his dick with yourlips as you spread them wide and begins to press it past them into your new entrance, making you moan in pure exstacy.
A small part of your former male mind rings out in protest but the pleasure overrides it and with every thrust that voice becomes smaller and smaller.
You feel that final build and feel your body tremble as you and Lisa orgasm in unison both of you feeling untold pleasure beyond which you had ever experienced as the last of your former male mind fades away entirely.
You look up at your lover smiling realizing how handsome he is and how much "fun" you two will be having. You can still remember your old life but you no longer care realizing that this one will be much better.