All characters are over 18. This is a work of fiction, and all characters, locations, and events are imaginary. This is a multipart series, and things start out slow(ish) but keep escalating.
There's a fair bit of anatomical terminology here, because the POV character is a nurse. Hopefully that won't detract from your enjoyment. There's a short glossary in Pt. 01.
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I awoke the next morning to Brian's phone ringing. It took me a moment to process where I was as he reached past me to grab it off the dresser. I got up to pee in the middle of the night and I think when I returned I fell asleep on his side of the bed.
I was a bit groggy still, but not so groggy that I failed to notice his morning wood. As he grabbed the phone, I grabbed his cock, happily running my hands over it as he groaned before turning to me and saying, "It's Cathy."
I didn't take him in my mouth, which I probably would have done otherwise, but then I didn't let go of his cock either as he answered, "Hi babe." I couldn't hear her well but then I was distracted by the toy in my hands. Brian struggled to keep his voice regular as he asked Cathy how the trip was going and when she was returning. He was so hard in my hands, and his skin was so soft and warm over the steel core of his penis, that I changed my mind and bent over to start kissing his shaft.
Brian managed a very normal-sounding "Sounds great babe. Safe travel, see you soon." As he hung up I took his glans in my mouth and stroked his shaft. "Ih ee uggig oh ooay?" I asked, with a mouthful of wonderfulness. "Yes, she's coming home today," he groaned down at me. "God, you're so... fuck, that feels good."
I smiled happily around his glans and worked my tongue on his frenulum. If she was coming home today I wanted more of his semen in me first, dammit. But I was being selfish again, taking what I wanted, so I pulled my mouth off him and looked up. "Do you want to cum in my mouth again, or something else? I did say you could have anything you wanted, and I'm not sure when our next chance will be." I was such a saint.
"Fuck. I... yes, this is good. More than good. Don't stop." He brushed my hair out of my eyes and reminded me sharply of when Cathy did the same thing. I didn't let that slow me down though and I stroked him faster and faster while sucking on his glans and looking in his eyes. I wanted him to come fast and hard, and I pulled out all the stops, humming and licking and stroking and watching him with adoring eyes.
He didn't last long. His ejaculation was a bit more filling this morning than last night, and I held it in my mouth and grinned up at him before swallowing it all and kissing his glans softly. "Thanks big bro. I love starting my day out with some protein."
Brian ruffled my hair and chuckled, then pulled away and stood up. "I need to show... we should shower."
I couldn't agree more, and happily slid out of bed and padded after him into the bathroom. I was mostly well-behaved in the shower, at least initially, but I did keep playing with his cock in between soaping him everywhere. I couldn't get enough of his body, honestly. I'd always had a crush, and for now he was mine, and I was determined to enjoy him.
Once Cathy returned, though, I wasn't sure what would come next. That sobering thought just heightened my enthusiasm as I ran my hands over Brian's thin muscular frame. My insistent hands had him fully hard again before long, and I felt no shame as I climbed him like a monkey climbs a tree, kissing as I went up.
"Fuck me, Brian. Once more. Right here." I was determined, and he was hard, and he laughed.
"Five times in 24 hours is a lot for me, Jen," he replied, but he was hard and I confess I whined in his ear.
"Pleeeeease. Fuck me."
He chuckled and moved to the wall, where he pushed me up against it and took me once more. The hot water poured down on us as he railed me, and my arms wrapped around his neck as I moaned happily. His hands gripped my ass and he thrust again and again until he shook and his orgasm overtook him. I could feel his cock throbbing inside me but it was hard to tell how much semen he had left at that point. I watched his face, delighted and determined to remember every detail.
When he finished, he lowered me gently to the floor and we kissed. Then he finished rinsing and without a word left the shower, and me in it. I rinsed his seed out of me and finished cleaning up before following him. I double checked in his room to ensure I'd left no signs of my presence, then went downstairs and grabbed my clothes and tidied up the room as he made us breakfast.
It was Saturday morning, and neither of us had work, so we had a long leisurely breakfast. Brian made exceptional French toast, and we drank a lot of coffee as we made small talk. We avoided talking about what happened or was going to happen by mutual unspoken consent.
After breakfast, I checked everything a few more times to be certain I hadn't forgotten something, some clue that would reveal to Cathy what we'd done. I'd been besotted, befuddled, and bewitched, and now I needed to be awake and aware.
I couldn't find anything, so I dressed and sat down to read. Brian spent much of the morning on his phone, checking emails and surfing the internet. I gently teased him about working on his day off, and he grinned. Things felt relaxed and easy, though I was a bit anxious about Cathy's return.
Cathy called again in the late morning; her flight had landed and she was en route home, so we delayed lunch until her arrival. Brian went out and picked up sushi for us, and got back just before Cathy did.
When she opened the door all my anxiety left. I was just happy to see her. She was wearing a dark blue sun dress that looked absolutely stunning, and after Brian was done hugging her I bounced over and got my hugs in. She laughed happily and pulled me in tight, and my face was pressed against her magnificent breasts as she stroked the back of my head. She smelled amazing, and I wanted to lay a kiss on her cleavage but found the self-control to somehow not do so. In the moment I couldn't even say how she would have reacted if I had, but I didn't.
We enjoyed the sushi together and caught up. It felt cozy and domestic, and I felt like a part of their little family instead of a third wheel. Once or twice Brian and I exchanged glances, but otherwise things were just... normal.
That afternoon Brian cleaned and filled up the hot tub, which had been unused through the winter. Cathy and I sat together in the kitchen as Brian worked, and we teased him about his paleness after he took off his shirt. Both Cathy and I were gentle in our teasing though, because we loved him and because, frankly, he looked good shirtless.
I didn't have a bikini; we hadn't picked one up and none of us wanted to go shopping that afternoon, so Cathy offered to let me use one of hers. The top was fine, if a bit racy, but of course I didn't mind that in the slightest. Though our breasts were very similar, mine were perhaps a little fuller than hers, and there was no padding to conceal my prominent nipples, which, again, was fine by me. I wasn't sure though if it would bother Cathy, so I asked bluntly.
"Cathy, is this ok? My headlights shine right through this." I smiled wryly and hoped for the best.
"Oh, Jen, you look great. And don't feel self-conscious about your nipples! I wish mine were like that."
