Stevonnie’s “Experience”
Stevonnie formed into existence on Steven’s bed. She was naked. Her body felt amazing, large heavy tits resting on strong abs, and an 18 inch fuck-stick sticking straight up from her crotch above her massive softball sized nuts resting on her engorged pussy and clit. “Shit” Stevonnie was horny, pissed, and sad. “Steven and Connie tried to have sex again…tried unprotected sex.” Her eyes rolled back as she swore again at her two halves. Each time they tried to get Connie pregnant…this happened. “Will we ever be able to have a child?” Stevonnie wondered, looking at the ropes that bound her to the bed, and snapping them with ease. Her body was fairly buff and strong. It looked like they were trying some “rape play” to prevent them from fusing while fucking, but Steven must have been too gentle and Connie must have been too into it. 

Stevonnie reached into the table next to Steven’s bed and grabbed out an onahole. 
“Eew, do you really use that thing?”
“Yea, I need it sometimes when you’re out at space camp.”
Stevonnie’s conversation with herself was fruitless, she was going to have to do something to get this erection to go down. And it was so hard. When most people say they are hard as a rock it is an analogy, but Stevonnie’s dick was literally as hard as a diamond. Tepidly she positioned the sex toy at the tip of her massive member. Reaching around her basketball sized tits she pushed the onahole down onto her shaft, tearing the silicone sex toy in half with one fluid thrust. “Fuck me” she cried, I was hoping to get some satisfaction out of it, but now…her cock at full mast and (if not for its immense weight) would be perched in between her big soft beautiful tits. 

Stevonnie stood up, nude as could be and walked around the house trying to think of some way to “get off”. Walking to the front balcony and feeling the beach breeze on her soft skin and raging erection felt good. She looked out at Pearl and Amethyst playing games with some of the other new world gems.
“Maybe some of the other gems could help? Pearl would do anything I ask, and Amethyst would always want to help me out.”
“Help? They’d shatter immediately! You saw how much power we have in this thing!”
Again, her internal monolog was not helpful. 

Walking back inside, Stevonnie noticed the gem door. Walking over to it, she touched her gem and the door opened. “Maybe I can make my own relief?” she pondered to herself, walking into the room, her elongated dick entered first. The room of clouds and wind was a good start. 
“Show me girls” she demanded of the room and countless naked girls appeared before her. “Bigger boobs” she demanded, and all of them *poof* had massive tits. 
“Really? You like huge fake looking tits like that?”
“Yea, I mean…what do you like?”
“Big bellies!” and the room of naked girls instantly had *poof* huge bellies, so big that their oversized boobs were forced into their faces and none of their faces were visible. Instantly Stevonnie’s cock swelled an inch or two in response to this display of women. “Wow, I guess I really do want to get Connie pregnant.” She said to herself. 
“Show me naked, pregnant Connie!” She demanded, and the room obliged. Hundreds of Connie’s filled Stevonnie’s vision, some with massive pregnant bellies, some with small baby bumps, and some so gravid, that they were clearly immobile. Stevonnie started stroking her long 20 inch dick fast and hard. Her balls were swollen and gurgled with overly productive cum. She had to use both hands to reach around her thick fusion dick. Even then, her hands barely touched each other. Veins started to protrude more from her hard shaft and her urethra started to swell as precum dripped, dribbled, and started to pour out of her pee slit like a faucet. “Cum, cum for me!” each and every one of the pregnant Connie’s started to moan and touch themselves, they even responded with cries of “Yes, please, cum in me, make me pregnant!”
A powerful orgasm hit Stevonnie hard, she got light headed as her cock swelled thicker than a gallon of milk, and her vision went blurry for a second as the first shot exploded from her veiny dick. Grabbing her nipples and twisting, she cried out as torrential blast after blast shot out of her thick cock. Covering every pregnant belly in front of her with copious amounts of she-batter. After 2 dozen hard contractions from her heavy balls, the orgasm subsided. 

Catching her breath, Stevonnie grabbed her still hard penis and said “Enough, I want to fuck myself!” Looking around at the cum covered pregnant holo-Connie’s she had an idea “Show me myself” and *poof* a naked version of Stevonnie appeared in front of her. Now her bitch breaker had reached 2 feet in length, hard as ever from seeing such a hot slut in front of her…herself. She pulled holo-Stevonnie to the ground and tried to thrust her cock inside, but *poof* the holo version of herself just turned into a cloud. Again and again, she tried asking the room for another and another…
Anal…*poof*
Vaginal…*poof*
Oral…*poof*
Holo-Stevonnie fucking real Stevonnie…*poof*
“Argh!” frustrated (and still hard as a diamond) Stevonnie left the room. Determined to get a solution to her problem, and get some rest. 
“Wait…I have an idea”
“What is it? Hey, what is it, tell me!”
Going to the closet in the house, Stevonnie pulled out a small silicone donut Peridot had made earlier that week. “This is the solution to our problems!” Stevonnie took the silicone donut and separated it into 2 halves, they became a portal. She places one between her ample ass cheeks and looked at the other. It appeared to have a swollen, needy, pussy in it. Placing that segment in between some cushions on the couch, Stevonnie smiled. “Here I come.”

Stevonnie thrust hard, shoving all 24 inches of her throbbing meat into her own cunt in one, violent, thrust. “Oh, fuck yes! This is going to do it!” She cooed as she felt the cock-shaped-bulge in her gut throb and expand a bit, her member growing to 28 inches long inside her warm innards. “I can feel it rearranging my organs, why the fuck does this feel so good!” Her pussy started to twitch as she came on her own massive bitch breaker of a cock. Thrusting in again and again it didn’t take long for her to cum inside her own pussy, inside her own womb. Her cervix doing little to keep her massive cock from barging in, but keeping all her cum inside. The pressure her cock put on her hard clit while cumming felt divine as once again her cock swelled thicker than a tree trunk inside her vagina as gallons of thick gem baby batter filled her womb. Bigger and bidder her waist expanded as she looked nearly pregnant, 9 months along, and then further. She had a belly that hung down below her knees, but there was one problem. She was still hard as fuck!

It took 6 more orgasms, and 8 hours of self fucking before she got all of her sperm out of her balls and into her womb…mostly. One of those orgasms managed to go up her ass, and another was from a self blowjob, but Stevonnie was satisfied, covered in cum, and very pregnant. She had a belly that barely fit in the main room of her house. Now flaccid, she decided to unfuse. Surprisingly, Connie’s belly wasn’t as big as Stevonnie’s was, but it was big enough to have both Connie and Steven cuddle together on top of it.  Over the next week, Connie’s mother would confirm that Connie was pregnant with 2 dozen babies. All variations of Gem-Human hybrids, but for now Steven and Connie just basked in the afterglow of a beautiful experience.