-Takes a seat.- Go on...

Basically a shy, normally reserved femboy who ends up with possession powers. He enters the host through and opening and becomes them. His primary hosts being his sister, his sister's boyfriend, and his mom, so he can get drilled by dad.

He's also well endowed, bi-sexual(Male preference), and can fit through small openings.

That sounds like a naughty fun time. You have a good solid skeleton for your story. Are there parts of it you are less sure about?

For example, would the possessed know that they are being possessed, or have been possessed? Will the femboy surprise their partners by making them realize that the person they are having sexy times with are not who they seem?

Would the femboy, while pretending to be his sister, make her boyfriend bi-curious?

Just shooting ideas at the wall, seeing what would stick.

The possessed would not know they are possessed while he is inside them. Though they may feel sore, full(of cum) or stretched out a bit.

For me, the reveal is even sexier than the actual possession, so the idea of him at times, surprising his partners by depossessing his host in front of them, and then either fucking them, or him getting fucked as himself is very appealing.

Making the boyfriend bi-curious does sound fun. Like say, setting something up using his sister, depossessing her, and then trying to entice the boyfriend.

"For me, the reveal is even sexier than the actual possession" <- I feel ya. -Fist bump.-

Maybe as he reveals himself to the boyfriend, the femboy can make him realize that the best sex he had with the sister was while she was possessed. He could tempt the boyfriend by teasing him and promising him that the best is yet to cum?

Perhaps a final outcome of that story could be that the sister is unaware that her boyfriend and her brother have an ongoing relationship behind her back?

Yeah. Maybe easing the boyfriend into a more direct relationship, though still behind sister's back. Like, the first go with the boyfriend he is inside his sister, and lets the boyfriend pound him, before leaving her body, and getting to fuck the boyfriend.

That is a good idea. Something sweet yet perverted. Of course sister might start to wonder where her brother has gone, which mom(possessed) reassures her that he's just busy with other things.

A naughty and arousing idea! Would a fun end of story reveal be that the femboy, possessing his mother to comfort her sister and quell her doubts, decides to roleplay with the boyfriend while in the mother's body?

Certainly. I can already imagine the dialogue "If you found my daughter so screwable, you should try where she came from"

Well, I think we have a very solid foundation for quite the naughty tale! This has been a deviously pleasant brainstorming session!

P.S.: I really don't want to impose my ideas on your work. I really love your stories, and greatly trust your instincts as a writer.

Pah. I love tossing around ideas, especially perverted ones

Thank you for the kind words :)

Thank you for the good reads!

I'm gonna try my best to try to repost some of my ideas that I posted on your old account and post some new ones.
1)This idea is about a male Yautjas (a.k.a the Predators from the Aliens vs Predators movie series) being sleeper agents on Earth as female humans and they themselves aren't even aware that they're male Yautja spies. The Yautjas was exploring the galaxy for a race of beings that are worthy of testing their skills as warriors after years of searching they come across the planet Earth and there they found it was inhabited by beings call humans. They quickly discover that the males of the human species are perfect for their needs so they decided to capture them and take them back to their home planet so they make a way for them to send sleeper agents by turning them into female humans and wiping their memories of them being male Yautjas. They pick the best hunters and warriors of their kind to become sleeper agents on Earth for their mission of choosing and then capturing the best human males to take back to their planet so they use a machine to transform them into sexy female humans and rewrite their memories(so they will really think they're female humans) and then rewrite their personality into of a dumb and very naive bimbo that only think of sex(I really mean dumb like "how did they ever survive on their own?"). They then lands their mothership somewhere deep in a forest and drop their now unconscious sleeper agents and leave them there but they will return for them after a few years when the mothership left hours later the sleeper agents woke up in the forest a little confuse because they can't seem to remember anything about their past except they are females humans but before they are able to think any further about that their bimbo personality kicks in making them suddenly forget all about what they were worrying about and start thinking about getting some huge cocks so they mindlessly wander off into the forest in the search of huge cocks(but really they're completely unaware that they are subconsciously achieving their mission of hunting for perfect male humans to take back to their planet). After many years later all of the sleeper agents now have muscular boyfriends a living with them but now it's time for them return home with their catch the after years of waiting the Yautjas have return to bring their sleeper agents back home they return to the spot where they left their sleeper agents and then sent out signal that will change the sleeper agents back to huge male Yautjas and bring back their original memories and personality. While at one of the sleeper agents is in her boyfriend's house and while he is out the sleeper agent is suddenly feel strange and strange thoughts are in her head she started growing huge and muscular then her skin start becoming scale-like and mandibles starts growing from her mouth she try to fight the transformation but it is useless as it is erase all of her memories and replacing it with the original Yautja's by this point she is now standing up to ceiling of the room and her clothes that she is wearing is completely rip off of her body except her small pink panties that is barely holding on to her body and is riding deep up her butt. Then she suddenly feels her vagina changing into a huge cock with watermelon-size balls which form a huge bulge in the crotch of her panties and making them rides up deeper into her butt now with the body completely transform the only thing left is the mind as it is almost done with wiping the woman's memories and personality and replacing it with the Yautja's and when it is finally done now kneeling in the woman's place is huge muscular hyper-endowed male Yautja wearing a small pink panties with a huge bulge and is riding deep up his butt the Yautja don't have any memories and knowledge of his sleeper identity all he knows is that his sleeper identity have chosen a male human for him to bring back to his home. Before the Yautja prepare for capturing his target he examined his body to see if the transformation is complete and notices that he is wearing a strange pink small clothing form tightly around his crotch and riding deep up his butt(the pink panties) and he finds this strange because their kind don't wear any clothes so he don't understand the concept of it so he assume that it is what great human warriors wear as a sign of a great warrior and the smaller it is the greater the warrior and bonus points if the Yautjas manage to wear it without having rip off their huge bodies(because it is the sign of how discipline the warrior's body of not ripping the small clothing) after accepting of what the Yautja assume is tradition of the human race he will bring this knowledge of the human "tradition" back to his kind so they can integrates this "tradition" into their culture. When the Yautja's human target finally got home the human is shock to find a huge alien being in his home and it is wearing his girlfriend's panties after the Yautja capture the unconscious male human he took him to the spot where he was drop at which is deep in a forest and he got there he saw all the others Yautjas was also there waiting with their unconscious catch when they all show up their mothership landed before them and they boarded the spacecraft when they collected their bounty of the hunt they take off back to their home planet and while on the way back the Yautja that is wearing a small pink panties explain to the others his concept of the humans' "tradition" of wearing the small clothing is the sign of a warrior and the smaller it is the greater the warrior and this amazes the Yautjas because all of them change back they were wearing them too(some of them were very small too some were pretty much strings) some were very small meaning they must be very respected as warriors by the humans but they rips them off because they didn't know how important they were but they will take this knowledge back to their planet. Years later the Yautjas now have a new tradition the "hunt" which they would send some of best warriors to Earth as sleeper agents transform into female dumb bimbo humans to hunt for male humans and back on their planet they believe that small panties are clothing of great warriors and now it is part of their culture that mightiest of Yautjas wear them despite them being very small for their body and it riding up deep into their butts they treat this tradition with great pride among their people.
2)This idea is about a teleport mishap with a huge hyper-endowed male Yautjas which leads him getting teleported inside a young female human which resulted with the young woman becoming the Yautja's living and conscious second skin that is tightly wrap around his body. In space there is a spaceship with a male naked Yautja(this Yautja is from a Yautja clan that don't wear any clothes they're always naked) in it want to get on Earth so he decided to use the spaceship's teleporter to get on Earth so then the Yautja discards all of his weapons so he can teleport his weapons separately then he set the coordinates to where he is going to teleport to and set coordinates for his weapons then the Yautja step into the teleporter and activate it then the Yautja disappear. While on Earth there is a young woman who is camping in the nude under the night sky but while she was searching for firewood a beam suddenly hit her after it is over that first she seems fine but after a few minutes she started feeling strange like something is growing from within her then it got worse suddenly her hands feels like it is getting stretch out like bigger hands are filling them out but as she looks at her hands she see they are taking a huge masculine form then she starts losing control of her hands and the same for the rest of her body. Now she can feel her whole body is stretching out as if someone bigger then her is trying to wear as a suit then whatever is invading her body is finally taking shape and it's appears to be a very masculine and humanoid shape creature as it is filling her body into it's shape and the young woman's rear end is now riding up deep in the creature's butt-crack and her crotch is forming a very tight bulge and finally her head started to fill out by the creature's head stretching her out then some mandibles pops out of her mouth with the creature's mouth is now sticking out of her thus rendering her unable to speak. Now the teleportation is now complete the Yautja now exams his surroundings to see he is in the woods and then he exams his body and is shock to find that his body have been change like his skin feels more tight especially up his butt-crack like a layer is riding up deep into it and he also that his huge penis is seal in this second skin forming a huge bulge but his huge balls hanging freely out of a hole(which is the woman's vagina) now he also notices that whenever he move he hears moaning noises. But the Yautja didn't let this in the way of his hunt he see this situation as a challenge for him to adapt to his new body so he waits for his weapons to teleport in when they appear Yautja equip them and went on to continue his hunt while completely unaware that his new "skin" is conscious and aware of her surroundings and she can still feel everything the Yautja do but can't do anything about but moan. Years later the Yautja now have completely adapted to his new skin since it's is now fuse permanently into his body and is still unaware that his skin is a living human female while the woman now have long accepted her fate of forever being the Yautja's living skin.
3)This idea is about a young female human being transform upside down into a male Yautja. A alien spaceship crash nearby a all-female sorority and some strange liquid leak from it and into the sorority's water supply and while at one of the dorms there is a sleepover and one of the girls was drinking the water and she feeling something strange to her crotch but since was in the middle of a party she it on hold. When the party is over and everyone is a sleep she went to bathroom to check her crotch and when she is in the bathroom she heard a low growl from her crotch so she slowly lift up her nightgown to find a huge bulge that is form in the the crotch of her panties and it was moving and the growls from the bulge is louder than before the girl slowly pull down her panties and is terrify to find a upside down alien face(Yautja) with mandibles in the place of her vagina growling at her with dreadlocks hanging down between her legs. In shock the girl try to pull up her panties on the creature's face in a attempt to muffle the creature's growling and suddenly she lost control of her hands and feet and when look to see she finds that her hands is turning into feet and her feet into hands and when the transformation is nearly done the Yautja is now standing tall head touching the bathroom's ceiling with girl's face is now upside down at the Yautja's crotch screaming but it was short live because her tongue transform into the Yautja's huge penis muffling her cries and then balls start to form and eventually her face have completely disappear leaving behind the Yautja's huge penis and balls. Now standing in the girl place is a huge male Yautja that is wearing the girl's panties on his head the Yautja escape the bathroom through the bathroom's window and disappearing into the woods nearby. Weeks later the water contamination has completely spread throughout the sorority and is now completely overrun by male Yautjas that are wearing girl panties on their heads and the first Yautja has become their leader.
Well, that's all of my old story ideas and I might post some new ones later on.

Thank you!

Please post them all^^