Jack lay prone on the bed, still naked after that incredible shower, and I was propped beside him, leaning on my left elbow and slowly trailing my fingers up and down his body.  He shivered occasionally when I came across a sensitive zone.  His perfect ass garnered a lot of my attention, with its downy fuzz, and I had to restrain myself (for the moment) from burying my face in it.
With his chin resting on his hands as he faced the headboard, Jack finally spoke.  "Wow, Gabe, that was even better than I thought it would be!  You know, I've really been thinking about us a lot, especially since you moved in here, but even before that.  I'd been wondering how to tell you my secret, and how you were gonna feel about it."
"Oh, yeah," I replied, stretching up to cover the nape of his neck with a couple of kisses, "I gotta say, I'm glad you did!  I've had a hard time coming to grips with it, myself."
He moaned slightly as I blew gently in his ear and nuzzled the lobe.  "For someone having such a 'hard time' with things, you sure have adjusted quickly," he said, grinning and jumping slightly as I grazed his balls between his legs with a finger.
"I guess you bring out the best in me, Jack," I said, slowly kissing my way down his back.  No longer able to resist, I pushed his legs further apart so I could spread those magnificent cheeks.  I leaned in to blow gently into his hole, then gave it some attention with my tongue.  He writhed on the bed as I did so, causing my target to move, and I laughed.
"What, you don't like that?"
"I love it," he said, "but are you sure you've never done this before?"
I laughed again.  "I'm sure, but I did have a girfriend who loved some ass attention, so I took a chance that you might, too.  At worst, you'd have told me stop."
"No, no, by all means, continue," he said, rolling back into position.
I pushed his left leg up further, bent at the knee, so I could gain better access, then attacked with my tongue.  He groaned as I worked in and around his hole, then slid a hand up to scratch lightly at his balls.
"Jeez, Gabe, I'm gonna cum without touching my dick if you keep that up," Jack said, muffled slightly by having his face half-buried in the pillow.
"Hmm, I do like a challenge," I replied with a grin, then flipped him over.
He was hard as a rock as I pushed his legs back, and I thought to myself I wish I had ever been that limber.  With his knees back by his head, and the tip of his cock poking him in the belly, his hole stretched slightly and I re-attacked.  I probed deeply with my tongue, while running a finger up and down the crack of his ass.  As I dipped and plunged, I could feel his body stiffening, and moments later his ass tightened and he began to erupt as his legs descended, shooting his creamy streams up around his shoulders and face.  What a sight!
Jack lay back with a dreamy half-smile on his face, then glanced down to where I lay partway down the bed.  He grinned mischievously.
"Not bad, but let me see what I can do!"
"If you insist," I replied, stretching my arms above my head with a self-satisfied smirk on my lips, "but don't expect such quick success!  I'm older, and can control myself much longer."
"We'll see about that," he cried, jackknifing quickly and fastening his lips on my still-erect cock.  He bobbed up and down a few times, then began sucking.
As blow-job expertise goes, he wasn't that good.  But for pleasure, knowing that this was something we'd both been fantasizing about, it was head and shoulders above any other blow-job I'd ever had.  I lay back with my eyes closed and let him work.
As he circled the head of my cock with his tongue, then licked my slit, I felt my balls churning rather unexpectedly.  I never came this fast, but as he reached up to tweak one of my nipples, I exploded.  I had no time to warn Jack, but he must have sensed it, anyway, and he pulled off just in time to avoid a mouthful.  He reached out and worked my cock up and down, helping to drain every last drop.
I lay back, panting a little from the exertion, and looked up at Jack to see him grinning like the cat that ate the canary.
"More control, huh?"
I grinned sheepishly, then pulled him down into a hug.  Our naked bodies met, and it felt right.