Not having a girlfriend, you don't really need your penis any time soon anyway.
And you actually love the idea of Bec having it for a while.
"Sure," you tell her, confirming she can keep her new toy for now and sit down next to her on the couch, "but I will get it back some time, right?"
"Of course, silly," she says and chuckles.
Then she hugs you, "Thanks!"
"Your welcome," you reply, enjoying the hug. You feel her boobs, or actually Miranda's, press against your chest. Not a bad feeling at all.
After a couple of long seconds, she lets go of you and puts your manhood in her purse.
Then she gets up and tells you she's got to leave.
"Now already?" you ask surprised.
She nods, "Yeah sorry."
"So, you just came by to borrow my penis?" you ask, jokingly.
"Well, eh, actually, kinda, yeah," she admits.
You chuckle, "I don't blame you."
She thanks you again while you walk her to the door.
Before she leaves she gives you her new cell phone number and hugs you one more time.
You wave her goodbye and close the door when she's out of sight.
You wonder whether you made the right decision by letting her borrow your most precious body part.
But it's too late for a change of mind now anyway.
Then you remember that next week your sister is planning to come over for the weekend.
A naughty thought crosses your mind. Maybe you could have Bec secretly come over and steal your sister's private parts when she's asleep. If you'd still have your cock, it would be fully erect again at the thought of having your sister's detached pussy and boobs in your possesion.
Or, maybe you could just ask Bec to come over during the day, let your sister know about the magic and convince her to let Bec detach her girl parts.
Or having your sister's head taken off and mounted on a trophy stand... that would be fun too! A living trophy head. She's quite pretty, so it would be a great trophy.
But first, let's get through the week without your genitals.
You're not sure whether you want your genitals back by next week already. It's fun to have Bec keep them for a while. Maybe you want them back in a few days already, maybe you'll be okay with Bec keeping them much longer. You don't know yet. You'll see.
You wonder whether Bec has borrowed more private parts. You know she's got Miranda's boobs, although you don't know whether she borrowed them, traded them or stole them. So, she might have more private parts in her possession. Well, she probably has, you figure. Cool to have such magical powers. You're a bit jealous, actually, thinking about all the possibilities.
But for now, you're just genderless. Let's enjoy that for the time being.