Please note that in this fanfic gems do normally have genitalia. Please also note that ofc I don't ship these two in canon, I just couldn't find any content on them and thought it'd be a nice original idea! (also in this au sapphire is a lot more layed back) Gems also don't have to strain their light to make clothes, and clothes-shifting is very different from shape-shifting. Enjoy!
Steven was laying in bed watching some TV when he heard a strange noise from down stairs. The young boy peaked over to his kitchen and saw, Sapphire! But something was off... She wasn't wearing her normal attire... no, not at all... Instead she was wearing a loose hanging tank-top t-shirt and some low cut sweatpants. "Hey sapphire!" Steven yelled, sapphire was caught off guard and jumped dropping the food in her hands. "Oh, hi Steven" she said with a calm voice "something wrong?" He asked, "no... Just not feeling up to much today..." Sapphire said while picking the food up "why's that?" Steven asked playfully "..." She was silent for a moment "you wouldn't get it.." she said while rubbing her legs together gently. Steven looks over "well I'm sure I can help, but if you need your space I get it" "thanks. Steven" sapphire says while walking to her door and leaving into her room. [Act-1 end]
[Many hours later]
*Steven wakes up in a sweat, he looks down at his erect penis*
"Another wet-dream? That's the 3rd one this week..." "... And why sapphire this time?!" The boy looks over at the temple door "I wonder what shes up to..."
[ ] *Steven gets up and walks into his gem room* "I want an entrance to sapphires room... a real one" the boy says as a blue poll raises from below the clouds. He grabs onto the poll and slides down "how far down is her room?" He asks after a small bit of sliding... Finally he's arrived, a room appears before him with a very rich looking interior almost everything is blue it seems as if this could be a rich persons house... They'd have to really like the color blue though... (I don't see her anywhere) he thinks to himself as a door opens. Steven quickly hides in her kitchen peaking though the wall dividing from the living room so he can still see her. "Why have I been so horny all day?!" Sapphire says angrily "and I can't even fap!" She says laying down on her rich person couch. "I wish someone was here... Maybe I'll go see Steven, he can help!.. Right?..." Sapphire says sadly. (How can I make an entrance without seeming like a total creep?!) Suddenly it seemed like he didn't have to enter as sapphire starts talking her clothes off "I'll try one last time!" She said while pulling her tank top above her head. Steven could now see her small perky breasts, and then. "Oh!" Sapphire starts playing with her tiny breasts, moaning very little She puts her hand down her sweatshorts "Steven!" She moans loudly, (i shouldn't be watching this, yet... I can't look away) Steven thinks to himself as he takes his highly erect penis out "ugh!" Sapphire screams "I still can't do this!" She says as she gets up quickly (come on Steven you need to enter before she finds you!) He thinks to himself as he puts his still erect penis away. Sapphire walks in the other room madly. (Nows my chance!) Steven thinks as he goes back to the poll he entered on (maybe I can slide down and make it look like i just got here.) He thought as he heard sapphire humming from her bedroom (I already know that she... Wants.. me... It won't be that hard to get into her pants) sapphire walks out of her room brushing her hair and humming, (nows my chance!) He thinks as he slides down the poll "Steven!" Sapphire says excitingly "I was just about to see you, But this is... Much better" (I can't believe what she's wearing!) Sapphire was wearing very revealing black lingerie dress, you could see her bra and panties though the dress "sapphire! I uh... I like(?) what you're wearing" he said awkwardly "oh! R-really?!" She said excitingly her eye sparkled as it peaked through her hair "w-why don't you sit down?" She said very trying not to be awkward. Steven sat on her sofa "would you l-like something to drink?" She said from the kitchen "oh, sure!" Steven responded. Sapphire came out with two drinks in her hand and sat on her sofa "so how are things with Connie?" She asked gently while sipping some champagne "oh we kinda broke up..." Steven said sadly "oh? Well that's bad news" (for you...) She thought while slightly smirking "I'd rather not talk about it" he said with his mouth up to his glass "s-so... What was that problem you were having earlier today? Is it still... Bothering you?" He said flushedly "oh it was just some... Female(?) Issu-" she said as she looked over to Steven, his gem was glowing and so was his penis "no!" He yelled as he pulled his hands down to his pants to hide his growing (and glowing) erection "oh steven~" sapphire says cutely "you're so cute when you blush" Steven pulls his hands away a bit in shock. Sapphire starts crawling towards the other side of the sofa "you said you liked what I was wearing?" She said as she crawls on top of him "I- uhm... I-..." He says blushing as his penis grows larger "Shhhh" sapphire puts her index finger on top of Stevens lips "I know you want this too" "so just let this happen" she says as they start to kiss. After many minutes she pulls away "s-steven... I never knew how to say it but... I'm so glad you like me back" she said as she pulls into another kiss this time lasting much longer she pulls Stevens shirt off and starts touching his penis though his pants "sapphire~" the boy moans with pleasure "don't stop". Sapphire pulls his pants down and starts licking his huge glowing cock *the boy moans with much pleasure* "s-sapphire... You can g-go farther if you w-want..." The boy stuttered from the pleasure. Sapphire takes her tongue off his pink glowing cock "this things huge! It has to be atleast 14 inches!" Sapphire exclaims with a twinkle in her eye and starts licking the tip of his cock. Suddenly she puts the whole cock in her mouth! "Ah! Steven moans in pleasure" he looks down at her as she pulls her head back up "don't... Stop~" he says while resting his head back with pleasure (I've wanted him for so long... For years... I just hope he doesn't only want sex... But would that even be a problem?) Sapphire thinks to herself as she furiously continues the blow-job "s-sapphire I-I'm-" Steven says as he's cut off by his ejaculation. Sapphire pulls her mouth away from him as his cock slowly stops glowing and his pink cum lays on sapphires face "that all you have in you for now?" She asked gently *Steven groans* "we need to do this more often" steven says as sapphire kisses his head "don't worry, we will Steven"
[Fin~]
There will be more don't worry!