Maddi put her hand on her crotch and gave her new organ (and Liz along with it) a gentle squeeze. "I'd really like to put this thing to some practical use. How about if I win, you become my horny, bimbo, stacked girlfriend and we make it last through the weekend?"
"OK," you reply. "And if I win, I get the big penis and you become my anatomically female horny girlfriend for the same time."
"Deal, bimbo." Maddi replied. "Go!"