Double Satisfied

I have been with my wife since high school. We have only ever had sex with each other. We have a rich, varied, and exciting sex life. We are completely satisfied with each other and continually learning more about how to pleasure each other and would never actually have a threesome. However, I have a specific fantasy where my wife and I start out in bed. We’re naked and rubbing our hands on each other's bodies. We start fondling each other's genitals while my mouth finds her bare nipple. I start to suck on her breast and flick my tongue across her nipple as her pussy gets very wet. Side by side, my cock has gotten extremely hard, and we start fucking while losing each other in a passionate kiss. We separate for a moment to catch our breath, and another man enters the room. He is big and muscular like my wife likes. However, a key point of this fantasy is that he has a pornstar-sized cock. As he enters, my wife moves to get on all fours with her ass up at the edge of the bed. She starts to lick my cock while the man comes up behind her. He licks her pussy, and I can feel her shudder in pleasure as she sucks my cock. He then stands up and very slowly rubs his massive cock against her pussy, not entering it yet. I can only imagine my wife’s anticipation as she wonders what it will feel like to be fucked by such a big real dick. He slowly, very slowly, enters her. I can feel her pleasure as she gasps and moans with my cock in her mouth. He slowly starts fucking her with his hands firmly on her hips as she sucks my dick. He eventually increases speed until my wife cums on his dick. I explode in her mouth, and he leaves the room. My wife and I lie beside each other, spent but satisfied.