Male/male bisexuality. If that's not for you, you may want to skip to part 5 to see how the story ends. In any case, I suggest you read parts 1 through 3, but it's not necessary.
As everyone began to descend from their orgasmic pinnacle, Meryl looked me in the eyes and said, quite matter-of-fact, "You haven't tasted Carmella's pussy, have you, dear?" Before Carm could respond, Meryl looked to Mitch "Precious, I did rather promise him a taste." With a speed that belied his years, Mitch climbed off Carmella and scrambled over my face. He was holding out his hard dick, dripping Carm's cum. Still straddling my cock, Meryl purred. "It's time, dear. Mitch has been so patient. And her pussy does taste so yummy."
I saw Carm hide a smile behind her fingers, her eyes wild with lust. Mitch's cock was so close I could smell her arousal. Meryl began rocking her hips on my cock.
Carm slid over and kissed me. "Do it. Suck my cum off this wonderful man's cock."
And I did. Opening my mouth to welcome this new experience, Carms' cunt nectar dripped across my tongue; delicious. Meryl was now fucking me hard, screaming "Dear yes dear." I saw Carm staring at me, frantically dragging four fingers across her clit and into her soggy pussy.
With a strange clarity, I realized that Mitch was only doing what I have done with many women. I shared the juice of their (or other's) pussy off my cock without a second thought. I tried to think of all the things I love in a blowjob.
Mitch looked a bit surprised when I reached around to grab his ass cheeks, but his usual gentle smile returned as I pulled him down, slowly taking his long cock into my throat. I felt my own cock swell as my hips thrust upward. Meryl shrieked.
I started licking around the head. I brought one hand down to lightly caress his balls and he slowly pushed deeper. Feeling him get bigger inside my mouth gave me a sudden thrill. Fucking Meryl faster and harder, I matched the speed of my mouth sliding back and forth over this incredible cock.
I heard Carm shout my name and looked down to see her sucking Meryl's bare chest where her nipples used to be. Insane with lust, she shouted again, "DO IT! TASTE MY CUM! GIVE HIM THE FUCKING BLOWJOB OF HIS FUCKING LIFE!"