The rustling of the shower curtain startled me out of my concentration.
"I thought I'd surprise you, I didn't realize I would be interrupting," Lexi said as she peeked around the curtain, her gaze shooting immediately to my hard cock. I let go of myself, feeling a flush rise to my cheeks.
"I'm sorry," I began. "I didn't—"
"Shhh," she hushed gently. She stepped in next to me, just out of reach of the warm spray of the shower. I felt my cock bounce at the sight of her, naked and perfect, her breasts already flecked with droplets of water. Her legs and pussy, perfectly shaven from the night before, made me salivate. "I thought we'd talked about this," she said. She stepped innocently closer to me, into the water, touching her flat tummy up against my aching cock. I gasped, and she pressed herself close to me, letting water wet her hair. The feel of her naked body was heavenly. "You were supposed to be trying to masturbate less."
"I'm sorry," I said again.
"It's okay, darling, I know it must be hard." She rubbed against me to emphasize her pun, and smiled lovingly at my gasp of pleasure. "We can talk about it tonight."
"Okay," I muttered.
"Think you can make it until then?" she asked. "You could always stay home from work...if you think you need me to keep a closer eye on you." She smiled wickedly.
"No," I answered, despite the throbbing in my cock. "No, I can make it."
"Good boy," she whispered. "Wash me? I thought this would be a nice way to start your week."
"I love you so much," I told her, reaching around to grab the soap. I kissed her as I reached behind her to scrub her back, relishing in the feel of her flawless skin. The arch of her lower back and the feel of her perfect ass combined drove me insane with lust, as she knew it would.
"I love you too, darling," she answered between kisses. She grinded her tummy against my cock again.
"You're not mad?" I asked her, embarrassed.
"Of course not," she said softly. "We'll talk about it tonight. Can't take too long here, I don't want to make you late for work." She turned on the spot, nestling her ass against my raging erection, and held my hands up so I could soap her breasts. I gasped again at the combined feelings, positive that I would cum on the spot. I heard her giggle again, and I proceeded to wash her tummy and then the folds of her pussy. She moaned softly, and turned to kiss me again when I was finished. "I'll finish up on my own, baby," she said. "Don't be late!"
"I could just stay home," I suggested. "I could call in sick."
"You'll get much more of this tonight," she promised. "But only if you can keep your hands of your cock until you get home. Will you do that for me?" I nodded, and she smiled again.
"Love you," I whispered as I stepped out of the shower.
"Love you too."
***
My day at work was nearly unbearable. I worked a boring office job, writing emails and filling out forms from nine until five every day. I had a few work friends who sat in the cubicles around mine, but today I tried to avoid talking to them as much as I could, for fear that they would somehow notice the erection straining against my pants. All day long, every small movement sent a jolt of pleasure straight through me, and more than once I found my fingers absentmindedly rubbing my cock through my jeans. I couldn't stop thinking about what Lexi would say tonight. Her reaction that morning had been far more wonderful than I could have hoped for. My amazing girlfriend and I have frequent sex and have indulged many of each other's fantasies, but lately the topic of my masturbation schedule had come up more than once. Lexi knew that I masturbated, like all healthy guys did, but until she had moved in a few weeks ago I don't think she had realized how much I did it. Thankfully, rather than be mad or disgusted she had simply suggested that I try to restrain myself, so that I could save all of my pleasure for my time with her. Considering how often the two of us fooled around it was hardly an unreasonable request, but of course I had found it difficult to comply. Especially living with such a gorgeous girlfriend, it had been nearly impossible. Everything she did drove me crazy, and she always looked amazing. Lexi worked from home, and so was always waiting for me after work, often with a sexy surprise and never in a dull mood. Even the evenings when we didn't fool around she looked so incredible that it made me crave release, and despite my efforts I had found myself jacking off in the bathroom while she fell asleep twice in the last week alone.
By the time I left work for the day, I was dying for an orgasm. I hoped that Lexi would be up for sex tonight, because the last thing I wanted to do was jack off behind her back again. Wild thoughts raced through my head all the way home, and I practically ran to the door of our house. Memories of finding her waiting for me at the door in lingerie, or waiting on her knees to greet me with a surprise blowjob, inundated my senses. Yet when I opened the door she was nowhere to be seen. Shaking off my slight disappointment, I ventured into the kitchen.
"In here, darling!" I heard her call from her office. I put away some things in a hurry, and rushed down the hall to the room just next to ours where she had made her home office. A computer sat at a desk beside a window large enough to light up the whole room, and Lexi sat at her chair, wearing a white blouse and a skirt that showed off enough leg to make my knees weak. "How was your day?" she asked as I entered the room. She stood to give me a hug, and purposefully pressed up against my bulge. She smiled sweetly.
"It was fine," I told her nervously. "I couldn't wait to come home to you."
"I bet," she giggled. "I thought we'd just order something for dinner tonight, is that alright?"
"Of course. How about you, how was your day?"
"Good," she smiled. "My assignments didn't take long...I did some shopping online." The wicked glint in her eye told me she wasn't shopping for books. I took a shaking breath.
"About earlier, baby—"
"Not yet," she said. "I thought all day about what I think she should do about this little problem. But I want to wait until later to talk about it. Alright?"
"Alight," I agreed nervously.
"I promise, you'll like it," she assured me. "Where do you want to get food from?"
We ate together happily, talking about the things that we had done all day, the people we had talked to or the interesting thing we had heard. She had more to say on the matter than I did, and she had cleverly and with much giggling guessed that I had been preoccupied at work all day. After dinner we walked around our neighborhood and watched some TV, all in complete innocence. At ten o'clock she ushered me into the bedroom, and after we had both prepared for bed she closed the door and fixed me with a smoldering gaze. She turned down the lights, and cast the room into a sultry red hue. My heart quickened.
"I want you naked for me," she said softly. I undressed quickly, and she gestured for me to sit on the edge of the bed.
"I know it's hard for you not to touch yourself, darling," she began, stepping closer to me as she began to unbutton her blouse. "And I promise I'm not mad about this morning. But I still want to try to help you control yourself, and today I spend a long time thinking about how I could do that."
My cock bounced, and she bit her lip as she looked down at it. She cast her blouse aside, and slipped out of her skirt. I pleaded silently as I watched her bra and panties follow, falling to the ground in an erotic rain. I reached for her, but she brushed my hands aside. I couldn't look away from her breasts; even after how long we'd been together, the sight of her still drove me wild.
"You do want to save yourself for me, don't you baby?" she asked, swaying her hips seductively. I nodded.
"Of course I do, baby."
"You want every drop of your cum to be for me?"
"Yes. Oh my god, yes."
"Well," she leaned in and kissed me lightly. "I think, then, that I just need to try to be more controlling of your orgasms. I want to help you learn to control your urges, baby. I know it must be hard to control yourself when you're so horny all the time and I give you so many opportunities to be a bad boy. But I think I could try to be better for you. Would you like that?"
"Yes," I whispered dryly. I wanted her body so badly. I thought my cock might burst.
"Alright," she smiled. "I thought you'd like the idea. I ordered a few things online today that might help us with that; they should be here tomorrow. Until then..." she pushed me over gently and straddled me. My cock brushed against her ass as I gasped. "I've thought of a few rules to help us."
"Okay."
"Rule number one. You're not allowed to cum without my permission. I know you've been trying not to anyways, but I just wanted to make it official; I thought it might help motivate you." She smiled and kissed me again. "I'll help you, of course, like I said. We'll both have to work really hard to help you follow this rule. Agreed?"
"Yes." I was lost in pleasure, the minimal sensation against just the tip of my cock driving me out of my mind. I ran my hands all up her back, losing myself in the feeling.
"Rule number two. You're also not allowed to masturbate without my permission, or my supervision. I'll let you masturbate for me sometimes, I think, but I want it to become something you do only in front of me. Okay?"
"Okay." She kissed me a third time and arched her back, applying more pressure to my cock as she pushed her pussy against me.
"Rule number three, baby," she whispered, "your cum belongs to me. No more cumming in tissues and flushing them away; every time you ejaculate it will be on my body."
I shivered at her words.
"And...well, this isn't a rule as much, and this is more for me...but I'll deny myself, too, for you. If you'll be going long periods without an orgasm then I want it to be something we can do together. I mean, I won't go as long...I'm not the one who's trying to learn self-control." She giggled.