Isekai Reincarnation Magic Cock

I was going home to lie down after working overtime but I was hit by a car on my way home...
"Am I dead?"
The second after I opened my eyes, a beautiful Goddess showering in white light asked:
“To save the Isekai world, what kind of special ability do you want ?
A super powerful weapon? Or super powerful magic?”
Even with these tantalizing options lying in front of me, I still want to fulfill my wish before I was dead:
"Anyway, please give me a Magic Cock that I can fuck anyone!"
Hence, with this powerful magic cock in my hand.
In this Isekai world that is about to be conquered by the Demon King's army, I'm going to save the world while indulging in SEX!