Helping his sister's friend

The potion burns Ricks throat as it goes down and a pleasant warmth spread out from his stomach his skin tingles and he feels lightheaded.

“Wow,” he says hearing his voice already pitching higher “it actually works, I can feel it changing me.”

Excitedly he tears of his jeans and t-shirt and runs to the mirror so he can watch the magic do its work. By the time he reaches the mirror, all his body hair has vanished and his skin is soft and smooth. Long fair hair falls past his shoulders and his body shrinks becoming slim and girlish a giggle escapes his newly full and pouting lips as perky breast swell from his chest. His hand goes to his rapidly dwindling cock feeling it drawing inwards until his slender fingers are resting on smooth pussy lips. He twists his body to get a better look at his long legs and round butt adjusting his posture to accommodate his wider hips and shifting centre of gravity. Finally, he leans in close to the mirror to watch as his face finishes morphing taking on new delicate features he knows almost as well as your own until Sarah his sister is staring back at him.

He shivers suddenly feeling the chill now that the initial rush of transformation is over plus staring at what is essentially his sister’s body is making him a little uncomfortable. He reminds himself firmly that for the duration of the potion this is his body and hurries to his sister’s room to find something to wear. Sarah has a pretty full walk-in wardrobe and it takes him a while to figure out what to wear. He starts off just trying things at random, he squeezes into her yellow bikini enjoying the way his boobs jiggle when he puts the top on and his new nipples rub against the soft fabric. It feels weird to look down and see his crotch completely flat and every time he touches himself his new skin tingles, he wonders if all girls are this sensitive or if his sister is just some kind of freak. He rummages through her draws glad that she is away for the weekend and won’t be able to yell at him for touching her stuff. Eventually, he settles on an outfit that is comfortable and cute, a pair of simple white cotton panties and a sundress because he loves the way it brushes against him every time he moves.

Right on time he hears a knock at the door and standing there is Helena, Sarah’s best friend since junior high and Rick’s longtime crush, she is the reason Rick has gone to all this trouble. Helena looks a little apprehensive, Rick knows that Sarah has been keeping the dark-haired girl at arm's length since she came out a few weeks ago and she is probably wondering why her friend suddenly decided to call her over out of the blue.

“Helena! Hi, I’m so glad you came.” His voice wavering just a little as he struggles to adjust to speaking with a different mouth “Ahem, please come in. I’m sorry I’ve been so weird with you lately. Can we talk about it.”

Helena smiles as he shows her in and his heart melts just a little, she’s such a sweet girl not to mention a total hottie and he feels really bad about how Sarah has been treating her, he hopes that his plan succeeds in making her feel better. He fetches her a drink and they sit and chat for a while, well mostly Helena chats, talking about how relieved she is to really be herself after years of pretending to be just like all the other girls and of course how hard it has been dealing with all her friends since then. Not that anyone had been mean about it, no one had called her a dyke to her face or anything like that but people didn’t seem to know how to talk to her any more they either avoided her or they got all weird and uncomfortable around her. As they talked Helena relaxed smiling and laughing more and more, leaning in close to share a secret or a joke. Rick had only planned to cheer Helena up be giving her back her friend for a few hours but now he finds his borrowed body responding to her in strange and exciting ways. Butterflies flutter in his stomach and his nipples poke against the fabric of his dress, the heat between his legs grows steadily until he can hardly think. Throwing caution to the wind he kisses Helena full on the mouth and after a moment she kisses him back pulling him towards her until their breasts are pressing together.

“Sarah!” Helena gasps when she comes up for air “I, I had no idea, I mean, are you sure you want to do this?”

“Shh, it’s okay,” Rick says kissing her neck “Trust me this is what we both need.”

The two of them make out on the sofa their clothes disappearing a piece at a time until they are pretty much naked. Things get more intense as they kiss and explore each other's bodies every touch a thrilling new experience. Rick want’s to take the lead but he is uncertain how to do this without his penis so instead, Helena takes charge. Gently she pushes him back and on a reflex, his legs spring apart allowing her full access to his pussy, she strokes him gently until her fingers are slick with his juices, he gasps then gives a low moan as she pushes one slim digit inside him, then two, then a third. The strange new feeling of being penetrated is almost too much, as exquisite as it is it just feels too weird he finds himself tensing and the probing fingers go from being an erotic tease to an uncomfortable intrusion. Seeing his discomfort Helena changes tack, she raises herself up and straddles his thigh rubbing against it working higher and higher until their pussy lips are pressed together in an erotic kiss. It is her turn to moan as they grind together, soon the air is filled with their wordless cries and the smell of sex. When Rick’s first female orgasm hits he is sure he is dyeing his hips buck out of control and waves of ecstasy wash through his body making him scream like a wild animal and blotting out all thought. When he comes back to his senses he is surprised and delighted to find Helena is showing no sign of slowing down, even when her own climax hits a moment later she just keeps going until she tips them both over the edge again. Rick couldn’t say how long they carried on like that, he loses count of the number of times they came, it could have been hours before they both finally collapsed from sheer exhaustion.

A part of Rick’s mind knows that there will be hell to pay for this when his sister comes home and finds he has been wearing her clothes and her body, when Helena finds out that he is not who she thinks he is, when his parents find out he has turned himself into a girl but as he drifts off to sleep in his lovers arms he knows that none of that really matters as long as the two of them can have each other