You were a bit shocked at this request. Thankfully, she was open and wasn't mad.
"Yeah, of course, come in. I'll go get them." You said, "Uh... what's your name?"
"Lilah!" She said, crawling to the couch and hopping up.
You grab your legs and bring them to her.
"Why didn't you just walk them over?" She asked.
"I don't know why, Lilah, but I apparently lost control of my legs when I put yours on." You said, sheepishly.
"Ah, that must've been when I stopped feeling my own legs. I thought it was a distance thing... are you saying you've had my legs on for, like, 14 hours?" She asked.
You shrug, "Yeah, it's been nice."
She looks hungrily at the male legs in your hands.
"Mmm, let me try those ones then..." She said.
You helped position the cuts and her skin fuses with your old legs skin. She lifts a foot up tentatively. She sprung up suddenly.
"Wow!" She said, "Your legs are so... poweful! I feel so strong!"
You hadn't really noticed any strength difference, but you hadn't really done much that needed lower body strength, either.
Lilah looks over to you, and struts close. She puts a hand from the top of her head to the top of yours.
"Wow, I'm so tall now too..." She said, looking at the relative change in height now. You were now an inch shorter than her.
"Huh, I hadn't noticed before..." You said.
Lilah quickly works her dick out. You felt a sudden blast of shame.
"Are you serious?" You said.
"What? It's nothing you haven't seen before, besides are you really going to be prudish after having my legs attached to you for that long? I could smell what you were up to, you know..." She purred.
Lilah worked her dainty, soft hands up and down your former shaft. Your old dick on her frame quickly hardened to its full 7 inches.
"It's so big..." She said.
You felt that same gnawing sensation again, and another wave of desire to be filled. You hadn't really won any fights against your own, new horniness, and the lust in Lilah's eyes betrayed she wasn't going to either.
You stared at each other momentarily, and Lilah walked towards you. Your mouth felt dry suddenly, and a deep, longing warmth spread from your new pelvis. Lilah reached a soft hand around your head and kissed you. You could feel her hard on pressed up against your thighs. You reciprocated and let out a whimpering moan.
You led Lilah to the bedroom and you both tore eachother's clothes off. Lilah grinned as she started to work your pussy. She clearly knew the ins and outs of her old vagina, and you were moaning and grinding in no time. You felt lubricated and warm.
"Hey, can you blow me? I know it's a big ask, but I want to try the whole thing..." She whispered gently.
The kinkiness of a soft, feminine voice asking for a blowjob with your own dick just made you puddy. You just nodded and took the hard on in your mouth. It was actually exhilarating, if a bit shameful, to have a cock in your mouth. You couldn't deny that it felt good, though. You sucked in the way you had wished previous sexual partners had, and you knew which parts to lick and how hard to bob. You were apparently a natural, being able to take almost 5 inches right away without gagging.
Lilah grabbed your by your hair and started to grunt aggressively.
"Come on, take more... please..." She said.
You look up, her face is contorted with pleasure. You decide to go the whole way. It was difficult and a little painful, but you were too horned up to care. You did this for about 5minutes before Lilah managed to pull you off.
"I still wanna fuck, though..." She said, "We better stop before I pop."
You nodded meekly. Lilah then entered you, gently. You were already wet and ready, you felt a bit of pain but also a deep pleasure at being filled up like this. Soon, Lilah was pounding away with reckless abandon. The thought briefly entered both your minds that you should really be using protection, but your horniness had kind of made you both glaze over an otherwise essential step.
You weren't sure how long this went on for, but you both managed to climax simultaneously. Lilah let out a surprisingly manly groan, and your had let out some some surprisingly feminine moaning. Guess that came with the territory. Lilah rolled off you after kissing you gently, and essentially fell asleep instantly. You were a bit disappointed there wasn't going to be pillow talk, but you knew that feeling she was having. You drift off in a glowing haze of pleasure as well.