The death crystal episode where Morty has his hand in his pocket and Rick says he thought he was just masturbating and chose to ignore it.
The evolution episode where Morty turns into a monkey and the first thing he wants to do is Jack it, so Rick gives him permission and waits on the other side of the tree for him to finish.
Anyway, thinking of a scenario where Morty gets girl parts instead, and after a quick freak out (where Rick assures him he can change him back into a boy) Morty of course needs to go check out the equipment. Except they’re very far from home so it’s literally just Rick and Morty. Which is fine, Morty is just going to go masturbate around the corner or something… except he’s trying and he can’t. He just can’t cum. He’s on the brink for a long time but can’t push himself over the edge. And eventually Rick just starts telling him to hurry up, which isn’t helping the situation at all. And once Rick finds out the problem he’s laughing at him because “come on Morty, you’ve been with chicks before, you seriously don’t know what to do? Makes me feel bad for them.”
“Sh-shut up Rick, I know what to do on other people. It’s just different on myself, I’m not accustomed to masturbating like this!”
And after a little more lighthearted rizzing Rick finally tells him that they can just leave so he can give Morty his penis back since he’s an expert dick toucher. And Morty ignores the jab and just says he’s not leaving until he cums because “when am I ever going to get the chance to experience this again, Rick?” And Rick gets frustrated and just says “fine take off your clothes, let’s get this over with.”
And Morty fucking balks at the idea, and starts stuttering over his words extra, because what do you MEAN get naked?
“M-Morty, we don’t have time for this. Either let me do it for you or get in the f-f-FUCKING portal.”
So Morty stares him down for a second, weighing his options before finally dropping his pants and underwear.
“Oh so you’ll let me eat you out but not see your tits. Take off your shirt, Morty.”
“You’re going to- you’re gunna- you’re what!”
“Morty do you w-wanna cum or not?”
So Morty strips down and gets his world fucking rocked. Like trembling thighs wrapped around Rick’s head, tugging at his hair, back arched off the floor, clinging in for dear life, moaning like a bitch in heat. And after Rick has dragged like 3 orgasms out of him (just to prove a point) he sits back and his erection is blatantly straining against his pants. And Morty acknowledges it, but since Rick can’t tell him that it’s because he’s superrrrr into Morty, he lies and says its because he’s just loves pussy so much, he’s a pussy connoisseur, and not to overthink it.
And since Morty can’t admit to being into Rick either he just comes up with some half assed excuse about never getting to experience being dicked down before, and again-he’s currently got a pussy and this is literally a once and a life time opportunity for him. And it’s such a desperate plea to be fucked, and they’re both idiots who cant admit to being into love, so they’re hiding behind this as an excuse. But Rick takes the opportunity and fucks Morty.
“Aw Geez R-Rick, you weren’t joking about having a big dick.” Morty says, clinging onto Rick’s shirt, (because despite everything Rick hasn’t taken off anything except his lap coat, and Morty somehow thinks that’s fucking hotter this way) and it feels like he’s being split in half for a moment until Rick starts rubbing his thumb over Morty’s clit.
“I would never joke about that, Morty.” And Rick groans as he starts thrusting in and out slowly. “B-but you’re forgetting to factor in that this is literally a virgin pussy. It’s so t-tight Morty. You’re so tight for Grandpa.”
And Rick devolves into a bunch of dirty talk. And maybe the two of them say some romantic things that can’t be taken back, and that they’re both going to individually freak out about after the fact.
And yeah I might actually turn this into a fic because I have so much more to say on the matter, but if anyone has any fics that are similar to this I would love that link in my comments.