Allow Rick to watch

You: "Fine....just stay in the chair in the corner....?"

Rick: "You got it....thanks nephew."

Rick goes towards the lazy boy chair in the corner, and removes his underwear, exposing his huge, semi hard, veiny old man cock, and sitting down. Jen doesn't take her eyes off him for a good 30 seconds, showing him her silky, white body, and her naked tits while he slowly pumps his cock to a full erection. With that, you're back in a similar situation as before, except this time you've got some semblance of control here.

You clear your throat, and Jen finally looks back at you, her cheeks are much more red than before, and there is clearly lust in her eyes. She seems determined to put on a good show for Rick, as she lifts her butt up much further than before, while kissing your dick and pumping it with her hands. The show is clearly working as Rick can't take his eyes off her butt, her panties covering her privates.

Of course, now that Rick is in the room, ogling your girlfriend, and she clearly enjoying it, your dick decides to go rock fucking hard again. It's almost like your dick is fueled by embarrassment. Never mind, at least your hard so you can enjoy what Jen is doing.

After a moment, Rick has stood up, and started caressing Jen's lower back, while jerking off. His foreskin makes these disgusting schlop sounds as he does, although it looks like it makes masturbation more enjoyable, and probably even sex.

You: "Uncle Rick.....stop.....you're supposed to stay in the chair..."

Rick: "I just came over to see better....fine..."

After he sits back down, he says: "You should suck him off, Jen...This is kinda boring...."

Jen: "mmm...really? Ok."

You thought this was only going to be a hand job, but Rick seems to have upgraded for you. You can't help but feel slightly thankful as Jen envelops your dick in her mouth, almost to the hilt in the first motion. Not that your dick is big by any measure, but still. She seems like a natural at this. Jen's velvety, wet mouth feels amazing. Why have you never done this before? This feels incredible! Granted the experience is a bit marred by your naked uncle in the room, but still!

Rick: "Take those panties off, girl..."

You: "hahhnnn....Rick...."

Rick: "What? I saw it earlier, this will help me cum faster...."

Jen slides your hard dick out of her mouth, leaving your wet dick in the open air, while she starts to remove her panties on Ricks request.

Jen: "Yeah, I don't mind, since we broke the ice earlier, right?" She asks as if you have a choice, her panties are already down to her thighs, exposing her very wet, and aroused pussy to your Uncle Rick.

You: "...right..."

You suppose you can't really object to this, since Jen got you to accept she could go a little further with Rick, so she doesn't miss out on her youth. Exposing herself even more to Rick has really invigorated her to suck your dick harder. She goes back down on you, wiggling her hips side to side for Rick to enjoy. Strangely, he has stopped jerking off, just sitting there, like a king. Naked, hairy, erect, big. Staring at your naked, 19 year old girlfriend sucking you off. There's lust in his eyes, and his hands grab the armrests, turning his knuckles white.

Jen's sucking has turned a little wild, you throw your head back and close your eyes in pleasure, moaning in a higher register than you intended. It sounded like a squeak, not much like a man at all. Keeping your eyes closed, Jen has also started moaning, while sucking even harder than before. You're getting close to an orgasm now, so you open your eyes to warn Jen. As you do, you notice Rick is not in his chair again. You look at Jen, who's eyes are closed as well, with your dick lodged in her mouth, sucking on it like a lollipop. Behind her, there's a big head of hair. It's Rick! He's licking her pussy!

You: "hnn...Rick? What the fuck?" You manage to eke out before erupting inside Jen's mouth, coating her mouth and throat with your cum. This causes her to gag almost immediately, and removes your cock from her mouth to breathe, and spit your cum out on your stomach. Jen's coughing has disturbed Rick, and he stands up.

Rick: "Aw, what? Did you cum without warning her? Bad move, nephew."

You: "Sorry baby..."

The way he's standing now, makes it look like he's fucking her doggy style. It's disturbing.

Jen: "Blahhh....*cough*....wish you had warned me...but it's okay...I'm okay..." she says as she spits more out on your stomach.

You: "But...what were you doing back there, uncle?"

Rick: "I just felt sorry for Jen that she was getting no pleasure, so I gave her some oral. It really encouraged her to suck you harder, it seems, you're welcome."

Jen: "It....felt good....and, oral isn't cheating, right?"

Rick: "No...just like a little favor..."

Jen: "You should clean up, baby....before this gets in the sheets...."

You: "Yeah..."

You stand up, cupping your hands below your stomach to avoid all the cum and spit leaking down on the sheets and the carpets, then make your way to the bathroom. After washing up, you realize: You left Rick alone, naked and horny with Jen! Fuck!

You run back to the bedroom, where you can instantly hear exactly what you feared, they're doing something in there. When you open the door, you're greeted with Rick's big hairy feet sticking out of the bed, he's lying on his back, with Jen on her stomach on top of him. Jen's big naked breasts are pressed up against his Rick's hairy stomach, and Jen has his thick, veiny cock halfway down her throat, her silver cross necklace resting on the base of Rick's cock. Your beautiful girlfriend is sucking Rick's big cock with much more enthusiasm than she exhibited with you, probably because she has more to work with. Jen's shapely, muscular thighs are on either side of Rick's head, undoubtedly he's got his tongue deep in her wet pussy.

You: "What the fuck is going on??"

Jen removes Rick's cock from her mouth, and jerks him off, fondling his foreskin, while saying: "I just wanted to...oh god...repay Rick the oral favor, since it isn't cheating, it's fine, right?"

Rick says nothing, but jerks his hips upwards twice, signaling Jen to keep sucking. Which she does, quickly. You can't really object any more, you did say that it was fine as long as it wasn't sex..... goddamnit, why did I say that?

In what seems like no time at all, Rick and you have switched places, now you are the one on the chair, with your dick in your hands, while Rick has his cock down your girlfriends throat. This is exactly the situation you were trying to avoid, but Jen was determined.....

She seems equally determined to coax Rick's cum out of his balls, judging by how wildly she is sucking his cock. She isn't even bothering keeping all the spit in, with no regards for the sheets now, Rick's entire cock and balls are soaking wet with her drool, which she seems to produce an endless amount of. With you, she was super careful not to let anything leak. With Rick, that doesn't seem an issue.

In an uncharacteristically quick refractory period for you, your dick is rock hard again from the sight of Rick's cock invading your girlfriends mouth. Instinctually, you start jerking off to this, even though it disgusts you, and even though your dick is still sensitive from before.

In about five minutes of sucking, Jen and Rick are super sweaty from the workout. Jen's throat is clearly looser than before, she can get almost two thirds of Rick's cock down now. Rick seems insatiable, eating Jen's pink virgin pussy like it's a buffet, he just keeps going without needing to breathe, it seems. Suddenly, Rick tenses up, and thrusts upwards into Jen's mouth, he's clearly cumming, ejaculating an enormous amount of cum into your girlfriends mouth, with no warning. Strangely, this time Jen seems completely fine with it, swallowing Rick's cum even seems to send her over the edge herself, as her body starts trembling, squeezing Rick's big head with her thighs, the sweat dripping down her sides, she's convulsing on Rick's tongue, squeezing it with her pussy. Rick's cum seems to be too much for Jen, as it starts leaking down the sides of her mouth, down Rick's shaft, covering his balls, and staining the sheets.

They both moan in muffled unison in the throes of their shared orgasm. It couldn't have been timed better, they were completely in sync. Seeing this, your own dick erupts once again, without you jerking it much at all. Just the visual was enough for you, and the depravity of your uncle giving your girlfriend a throatpie.

Jen starts to remove Rick's cock from her mouth, and when she does, you can see Rick is still cumming, albeit a lot slower now. Jen swallows what she had in her mouth, and puts her mouth on his cockhead again, sucking up what cum is still left. You recall she spit out all your cum, what's the deal with that?

In a few moments, Rick lifts Jen off of him, and takes a breath. His face is completely soaked with Jen's juices, as well as Jen's chin is soaked with a combination of her spit and Rick's cum.

Rick: "Fucking hell...that was world class....you're a natural cocksucker, Jennifer....really, really well done..."

Jen: "Thank you! Not so bad yourself, mister..." she chuckles, wiping her chin.

Rick: "Damn...you swallowed almost all my cum....no girl has ever been able to do that....especially after I've been saving for a week."

Jen: "It was hard, but I managed....It tastes a lot different than Jakes...."

Rick: "Yeah, it's different per person, but we're obviously very sexually compatible...."

You: "Wait....saving up for a week?"

Rick: "Ever since you showed me her picture, yeah..."

You: "So....you were planning on this all along...??"

Rick: "Of course, why wouldn't I plan on that with such a sexual goddess....she's remarkable....I gotta thank you for sharing her with me, it's a real honor..."

Jane: "Aw, thank you....you're....very sexy, too...."

Rick takes Jane's head in her hands, and says: "Uhm, you're okay with a kiss now, right? Seems silly to even ask after cumming down her throat...."

You: "I guess..."

Jane: "Yeah, that's not cheating..." she says, opening her mouth to receive Rick.

They then share in the longest, deepest, most passionate kiss you've seen. They're groping, stroking, rubbing eachother all over. Rick's cock perks up again, even after cumming just moments ago, and such an amount!

Rick: "God, I wish we could fuck right now, I'd fuck you so good...." Rick says, palming her pussy.

Jen: "I know.....god....but that would be cheating....and I promised...."

You: "Yeah...."

After a few more minutes of groping and kissing, Jen breaks the kiss off and sends Rick to bed, before anything else happens. You're very glad she did, showing how committed she is to her promise. You just hope this is the end of all this sexual experimentation, and Jennifer can calm down for the rest of the trip.