You stare at his seemingly giant cock, and it stares back at you, in hopeful anticipation. For a brief moment, you have your doubts about whether you can actually proceed, but you feel yourself getting more and more aroused. It's only after a few seconds that you realize that Steve hasn't stopped lapping away at your pussy. Letting your impulse take over, you start gently running your hand up and down his cock, lightly licking the tip.
You are rewarded with a moan, mostly hushed by the fact that he's still wrapped entirely between your legs. His hips start to thrust up, pushing his cock further and faster into your hand, and with a sudden push on his part, into your mouth. Now that the seal has been broken, you start seeing how much of him you can take in. With your hand around the shaft, you slowly start taking him further in. In a desperate attempt to maintain control, you stop moving any time he thrusts upwards, trying to convince yourself that you are still the dominate partner in this interaction.
Surprisingly, you find yourself at the halfway point of his cock, with none of the tell-tale signs of needing to stop. As you start to feel the head in your throat, you hear a couple of urgent moans from Steve, and you feel his body tense up. Before you can process exactly what that means, you feel him cum right down your throat. Unphased by this, keep sliding him into your mouth, taking more and more of him as he starts to soften. It's only when you feel his pubic hairs on your nose do you realized that he's stopped playing with you. Using your free hand, you start playing with his balls while you hold him entirely in your mouth.
You are too horny at this point to not have another orgasm - you really can barely think straight.
Between the ball play, the wetness of your mouth, and the uncontrolled sounds you utter as you start grinding your pussy on him, you feel him begin to harden again. You wonder, briefly, why your in-laws needed to be younger - their bodies seem to be working just fine.
Not wanting to let your work go to waste, or to miss out on a new experience, you quickly climb off his face, turn around, and with surprising skill, impale yourself on Steve's fully erect cock. You feel a wave of pleasure pass through your whole body, pulsing out from your newly penetrated hole. As you lift and lower yourself again, you feel another wave pass. You finally look down at Steve and he has the most well chuffed look on his face.
"What are you grinning at?" you ask of him as you slowly slide up and down on his cock. You realize that it's probably pretty hard to take you seriously like this, but you try to give him a serious look anyways.
"Oh... nothing. I just never realized how cock-hungry my wife was," he says with a grin. "Or, to be honest, how God-damn amazing your pussy feels. No wonder you want to fuck all the time. It's like sticking my cock in heaven. Warm, welcoming, and most importantly, wet."
"I'm... not sure heaven is wet." You say, skeptically.
Transitioning to a shit-eating grin, "Oh, I'm sure it is!"
"Ughhhh, " you say, rolling your eyes as high as they can go. "You're ridiculous." Thinking you can get a better angle, you lift yourself and settle down on your knees, riding him cowgirl style. It slides him all the way into you, a positively divine experience. That shuts Steve up as he soaks in the image. Realizing this affords you some newfound freedom with your hands, you start playing with your tits, tugging gently on the nipples.
"You know, " Steve says, in between belabored breathes, "I bet their big enough that you could lick them yourselves. I know you've asked me to try before, but mine weren't big enough. Why don't you show me what the big deal is!"
Lifting your right tit up towards your mouth, and bending down, you're able to easily reach. You start by gingerly licking it, but when you realize how it feels, you pull it closer and start to suck on it. Remembering the challenge, you decide to give your sexiest "I wish this was you" look to him.
"Okay, " he says, "That's pretty fucking hot." He props himself up on his elbows and starts sucking on your other tit. You start speeding up your riding, as you feel yourself losing control.
"Fuck me, Steve. Just fuck me. Make me cum with that huge cock of yours.Let me feel you cum inside me, I need to feel it!" You say, unsure of what's even coming out of your mouth. Not needing to be asked twice, Steve picks up the pace, sliding his cock all the way in and out. You can feel the tip part your lips and push aside as you are repeatedly filled.
"I can't hold out much longer!" He says.
"Cum for me!" you practically growl at him. He, quite easily, fulfills your request, as you feel a warmth spread across your insides. Realizing what just happened is enough to take you over the edge, and you release what is easily the largest orgasm of your entire life. Your toes and fingers curl, as sounds escape from your mouth uncontrollably. You collapse in a heap, next to him, cum leaking out of your pussy, mixed with your excessive wetness. You kiss him on the neck, and fall asleep, never more content than you are right now.