First, I'm sorry this one took a while. This is a busy time of year, even (or maybe especially?) for a CockSlut.
So we last left off on that first night when Molly fucked me, using the smaller dildo, trying to get me used not so much to the size, but just the hesitation that comes with someone coming up on you like that from behind. Apparently I was stretchy enough, but just clamped up from nervous anticipation. We used the smaller dildo so that, even though I was clenching, there was still enough room to get it inside me.
Suffice to say that the plan worked. By the third night I wasn't really clenching at all, and halfway through we switched to the larger dildo, the one that was so very close to the boss' cock. Molly insisted, and I agreed, that we practice with it for a few nights just to make sure there wasn't going to be another false start once she handed me back over to the boss.
It wasn't all just work though. After the first night, Molly stopped kicking me out right after. The fourth night, she even slipped into bed next to me, pulling the sheets over us. There was something oddly sweet about it, even though she kept the harness and dildo on, a not-so-subtle reminder of who was in charge, and who was fucking whom.
Starting on the fourth night, I think, she had me start trying to suck her off, using the larger dildo. She said it was to practice, to get used to the boss' size. Apparently the boss was overall happy with my cock-sucking skills, but wanted me to learn to take all of him. I... had no idea how or even if that was possible, but we tried. I got better, but still couldn't take the whole thing, not yet.
On the fifth night, Molly gave me head. It was approached matter-of-factly. Molly said that she needed to get herself in the mood, that giving head turned her on, and that she wanted to before we started. Of course I didn't complain, didn't hesitate really, and was hard nearly instantly.
Now, I'm not hung like my boss is. I've said before, he's over ten inches long, and very thick. I'm nothing like that, but also not entirely a slouch. I'm more or less average, but could maybe make a girl choke if she tried to take it all. Molly, though, must have been a pro or something, because in one motion she swallowed my whole length. She sucked me with surprising enthusiasm, stopping about a minute or so before I would have cum. Apparently that was enough for her, and I noticed as we changed positions just how stiff her nipples were, and how slick her pussy seemed. I guess it did do something for her, and that would have been the end of my curiosity, except that a minute later, while fucking my ass, her hand slipped around and under me, and stroked my cock with each thrust.
A week into our practice, Molly again lay next to me after fucking me, the sheets tenting from her massive dildo. We were close, but not touching. There was no intimacy, certainly no romance: this was just sex.
"I think you're ready," she announced suddenly. We hadn't been talking, and the room had been nearly silent. "I'm going to tell the boss tomorrow. He'll probably want you right after, to make sure for himself. So, you know, be ready for that."
I nodded. I knew that day was coming, and my stomach gently churned with anticipation. "You think I'll do OK?"
"Yeah, honestly. I think you'll be fine. Just remember to breathe and relax. He's just as big as this dildo, but no bigger, so he should feel just like it does." She reached down and grasped "her" cock through the sheets. "If you can take this, you can take him." I only nodded, and again the room fell silent for a while.
"So... then I guess there's no need for us to keep doing this, right?" I asked after a few minutes. Molly shrugged.
"I guess not..." she said, and I swore I heard just the tiniest hint of reluctance. For the first time, I looked at her.
"I mean... unless you want to..."
"What? No," she insisted, indignantly. "I... no I don't. I mean... look it's been fun and all. You're... not a terrible fuck, I guess." That was an interesting statement, considering I hadn't actually fucked her. "Not many guys would let a girl peg them with a monster like this so... you have that going for you I guess. And... you... kind of have a pretty cock, so there's that, but that's it. There's nothing going on with us. This was only because the boss insisted."
I nodded, but couldn't get past the fact that she had actually complimented me, twice. "That's fine," I said, knowing that I hadn't really expected anything. "But you know, if you ever feel that itch..."
"Here's how it's going to work, CockSlut," she said suddenly, turning her body to face me. "When I feel the urge to either fuck or be fucked, I'll tell you, probably before we leave work. You'll come over, we'll do the thing, and that's it, alright? No emotions, no attachments. I don't love you or even like you. You're just convenient and happen to like the things I like. Got it?"
Molly had said "fuck or be fucked". She wanted me to fuck her? I asked her.
"Maybe, sometimes, it depends. I don't know, for all I know you're terrible with that thing." She gestured toward somewhere between my legs.
"I dunno," I said, suddenly finding myself with just the slightest leverage. "I mean, it's not that big, not compared to..." Like she had, I gestured between her legs and the massive pole holding up the sheet.