"Have you ever used these skills for perverted things?" you asked your girlfriend
"I used it, and it's so good that normal masturbation is no longer enough to make me come." your girlfriend said
"Really. So I want you to show me what you're capable of, I want to see you masturbate now." you said
"You're such a naughty boy, but I like that. I'm going to do it as you want, but with what I have in mind I think it will be hard to call this masturbation." she said. Her neck stretched, then two tentacles came out of where the neck joined with her head, one on each side, stretched even with each tentacle splitting in two along the way. The tentacles gained more defiance when the ends gained bones and became legs, the rest thickened to become torsos before each gained six breasts like the ones she had in her original body. Four more arms grew in each of your girlfriend's new bodies.
"Wow, three bodies? You really surprised me." you said
"And I'm not even ready yet." she said with each new body pointing between their legs where there was nothing, which did not last long because between her new bodies legs a dick grew, each growing until they were at least 11 inches long, then a sack formed with a pair of orange-sized testicles in each.
"Dicks, do you have dicks now?" you said surprised
"That's right. I am not limited to female body parts, I can acquire male parts and transform myself fully into a man if I want to. I can also acquire animal parts if I want." she said turning her ears into rabbit ears to show. "Now the main attraction begins." she said and with the body attached to the left neck she stayed behind the body in the middle of it, she put her cock against her own ass and pushed it inside. Her other body then turned around, facing her and her back to you, and she took this body's cock to her pussy.
If you were not seeing this with your own eyes you would never believe it, your girlfriend was in front of you, she had three bodies, two of which had a huge dick between her legs, with which she was fucking herself in a self- threesome. She used 8 arms to hold her middle body in place and four of her central body to hug the body in front. She had 12 breasts rubbing each other while squeezing six breasts on her back. It was weird, but it was also very sexy. Your own dick was hard inside your pants, you couldn't resist and took off your pants and positioned yourself behind the body that your girlfriend used to fuck her own pussy and pressed your dick between her buttocks to fuck her ass, but you found nothing.
"Sorry, as I didn't intend to use it, I didn't even bother to put an ass. I already solved this problem." your girlfriend said and you looked at her ass that was in front of you. Instead of an ass, she made a new pussy appear between the buttocks, this new pussy had two clitoris, one on each end.
You didn't get excited and started to fuck this newest pussy like a wild animal. Her arms were not enough to embrace her three bodies, but she brought her head close to yours and you kissed.
In a short time the bodies your girlfriend was fucking herself with gave one last boost and stopped. She cut the kiss saying "I'm coming, yeah, this is soooo good." You also came feeling the pussy you fucked getting tighter around your dick.
After orgasm she lay down, her three bodies piled on top of each other, and you on top with your cock still inside her ass-pussy. Your girlfriend then transformed again, returning to her normal form, and you lay down hugging her in bed.
"That was incredible. No one will believe it when I tell them about it." you said
Your girlfriend turned her mouth into an asshole and farted in your face, then restored her mouth and said "Don't even think about telling this to someone, this is our secret."
You recovered from your girlfriend's fart stink and said "I know, I will not tell anyone. But..."