"Alright, I'll let you unbirth me, after all, with a fine body like yours, who could resist you?" You say with a smile.
"Oh, goodie, alright I'm gonna start feet first." She smiles grabbing your legs.
You feel the warm wet comfort of her womb enveloping you, and enjoy the feeling, looking up with a smile. You couldn't believe how lucky you were to find a girl like this, you're so lost in pleasure, that you finally snap out of it as she envelopes your head, bringing all of you into her womb.
When your head passes her cervix, you look around and find that she wasn't actually pregnant, and the baby you put inside her wasn't even there anymore.
Beside you was a young woman, around your age, with a nine months with twins belly, and breasts that looked like they were each carrying an unborn child.
"Hi, my name's Ruby. Judging by your reaction I'd say Alexis didn't tell you I was already in her belly. Looks like you're stuck here with me." The girl smiled. "So... since we don't really have anything better to do. Want to have sex?"
"Hell yeah." You smile before positioning Ruby to where you penetrate her from behind.
"Oh, you're so big, deeper, harder." Ruby groans as you hump her like crazy.
On the outside, Alexis's belly is moving around like crazy, as the two of you have sex. The pleasure of it all is too much for her to handle, as she begins to moan in pure bliss. She manages to carry herself to the showers and sit as the water runs down her now naked form.
She aggressively gropes and rubs her breasts as the two of you continue to fuck for what seems like hours, drawing on her energy to keep up your stamina and endurance. Until you blow the biggest load you've ever had, in Ruby's womb, causing her belly to swell, and in consequence, Alexis's.
"That was great... now...