The next time Chris showed up at the house, her mother and mine were planning to go watch a movie. She wandered in and plopped down on the sofa with an insolent smirk, and grinned across to where I was sitting in the armchair.

"You've got about twenty seconds before they leave, and then I'm in charge again. Make the most of it."

"You wouldn't know how to be in charge if... Oh, hi Mrs Coster. Mum's still getting ready, I think. Take a seat."

"Thanks Paul. How's school?"

"Do you have to talk about things like that in the evenings?"

"That good, huh?"

"Look, I get enough of this from Chris."

"Well you know, I taught her everything she knows."

"Everything?"

"Well, except that language she uses on the phone with her friends, when she thinks I'm not within hearing."

That got Chris going, especially as she couldn't see her mother wink. "Mum, stop that. You listen to my phone calls?"

"Only the good ones. Oh hi, Mary. You ready?"

"I just had to put my face on, in case we meet some men, Beth."

"Mum, you have a man."

"I wasn't going to tell him, Paul." She was grinning too.

Chris' Mum piped up then. "Right, let's go. Say goodbye to my daughter, would you, Mary? She's not speaking to me right now."

"Oh dear. Bye Chris. Look after Paul, okay?"

"Yeah, sure thing Mrs Brown."

"Good. All set then? Mary, you want to let Chris off the hook, and tell her I don't listen to her phone calls? Then we better go."

"You don't? There's no way Paul gets a single instant without me..." Mum shut the door behind them, and we were alone again.

"Okay, gotta ask you something, Paul."

"Uh huh. Can you wait until the ads?"

"Paul!"

I flicked the remote, and the room went quiet. "Yes, CA?"

"God! I just want to know..."

"If I regret it, and if it was a big mistake?"

"Yeah."

"Nope, and... nope."

"No?"

"Hell no! You?"

"No. It... it was great. But I've been worried about it. I'm sorta in a position of authority here..."

"Oh, you are not."

"I am."

"I don't need babysitting any more than a fish needs a bicycle."

"That's not what your Mum thinks."

"Does so. She just thinks some of your good study habits might rub off on me."

"Rubbing's good."

"Yeah."

"Alright, so I'm not in charge, but are you going to sit over there by yourself the whole night?"

"We've done stuff over there. You come sit with me in the armchair."

"Is that your most gentlemanly invitation?"

"That's as good as it gets."

She hopped up and walked over. "How is this going to work then?"

"Well, you crouch down here, facing me, your legs straddling mine. Nice skirt."

"I wore it specially."

"I bet."

"This is quite comfortable."

"I know."

"You going to kiss me, Paul? Or talk?"

That was all that was said for a while. I tipped my head up a little, and locked my lips with hers, moulding our faces together and letting my hands wander where they would.

Chris put her hands behind my neck for a start, pulling my head to her, keeping her eyes closed and her tongue busy.

My hands ran down the back of her t-shirt, over the clasp of her bra, and down her spine, her skin hot through the thin cotton, her ribs hard under the softness. At some point I gently lifted her face from mine, in hopes of a little air, and then, almost without thinking, lifted the shirt from her stomach, up over her chest until it was bunched above her breasts. She looked stunned for a moment, as though she had no idea what to do, and then lifted her arms, and let me continue.

As soon as her shirt was off she returned the favour, pausing and grinning for me to lift my own arms. As my shirt pulled off my hands, and Chris still had hold of it, I lowered my arms and reached behind her back, finding and fiddling with the bra clip until she started laughing and undid it herself. I peeled the bra straps around and off her breasts, and let her thread the thing off her arms while I stared.

This was the second time I'd had her bare breasts available to me in this room, and as my hands took hold of the freckled globes, our position was such that I was able to lower my head and take one of the dark nipples into my mouth.

I heard Chris gasp as I sucked on one nipple, and teased the other one with my fingers. I thought she was upset for a moment, but then I could feel her pressing hard against my mouth, and relaxed a little. We sat there for a while, weaving slowly together, my cock hard and trapped, my mouth very busy.

Chris was sighing a lot when suddenly she pulled away from me, and stood up.

"Oh, sorry CA. What did I do?"

"Nothing, silly."

"You're okay?"

"God, yes!"

"Oh. Okay then. Why are you...?"

"Shush. Girl's busy."

She looked stunning standing there in nothing but a rust coloured skirt, and presumably panties. She obviously thought that things were a little unbalanced, because she leaned forward and took hold of the waistband of my jeans, pulling me out on the armchair a little, before kissing me again, still standing, and undoing my belt.

"I bet that's not very comfortable down there, is it?"

"Not especially."

The button was next. "Easily fixed." And then she unzipped me. "Ooh. Classic white. Nice. Lift your ass."

No sooner had I done that than she'd grabbed the ends of my trouser legs, and hauled the jeans off over my bare feet. Now Chris was more dressed than me. I reached out to remove her short skirt, and my hands were gently removed.

"Uh uh. I want to keep this on for now."

"Oh, yeah, but..."

"No buts. Hands off."

"...I want to have a look."

"Later."

"Bully."

"You're new here? Just be quiet and let me climb back on there. Nice bulge, Paul." Straddling me again, she pressed herself in tight against me. Her breasts were in my face again, and I could feel her crotch against mine. She lifted the skirt a little, and let it settle between us. "Leave that there. It makes me feel innocent."

"In this position?"

"Yup. You mind your own business."

"These are my business, right?" I attached my mouth to her nipples again.

"Oh, yeah, that business."

I couldn't really talk much more, and concentrated on the task. Her nipples were hard, and her breasts were lovely. She sighed even more above me, and now I could feel her crotch grinding into mine, my cock providing some sort of leverage for her movements.

After a while, her body was swaying rhythmically before me, and suddenly she pulled my head back from her breasts, and tipped it up so we could see each other.

"Paul, I'm... I think I'm going to come now..."

"You are?"

"Uh huh.

"Go on then."

"But what about..."

"Later. Go on."

"Lift the skirt up."

"Yeah?"

"Uh huh. I don't need to feel innocent now."

I kissed her quickly, looked down, and hoisted the strip of rusty cloth between us. Chris was wearing white as well, and we could both see her crotch grinding against mine, my cock fitting in the depression in the middle of her panties, her crotch riding up and down, dry-humping me helplessly.

I could see a wet patch on her panties, and a small one on my undies where my cock had been leaking.

"You sure don't look innocent."

"I hope not."

"Could you just... help a little, Paul? With your finger, maybe?"

"Just here?"

"Uh huh. Like... Oh, God."

"Yeah?"

"Yeah, it's.... Ooooh. Just a little more. Just... yeah!"

She stopped making sense then, crushing her body against mine, and her crotch trapping my hand between us. Her gyrations became faster, and a little more desperate, and then, as she arched her back, shuddering around me, she came. Hard and fast, clawing and grabbing at me. It was more than I could take, and as she clung, quivering, I shot my load, achingly, pumping out the top of my briefs, into the almost closed space between us.

It took both of us a moment to come to our senses, and then Chris was the first to speak.

"You naughty boy." I couldn't see her face, but there was humour in her voice.

"What?"

"You came in your pants."

"Not quite."

"No?"

"No. Actually, I kinda came on your pants."

"Oh!"

"Sorry."

"You should be."

"I didn't mean to make a mess."

"Not for that."

"No?"

"No. For not having the tissues handy. Again."

"Oh. Ah, I'd offer to get them, but..."

"Yeah, I know. I'm sitting on you."

"Yeah."

"Should I get off?"

"Well, not that I want you to, but... umm... shouldn't we clean this up, just in case?"

"In case?"

"Yeah, well I know the odds are slim, but what if it goes somewhere it shouldn't?

"Oh. Ummm... Listen, I'm in the right position to ask, right Paul?"

"Ask what?"

"Anything I want."

"I guess."

"Okay. So has that thing been doing anything that could carry a disease?"

"Thing?"

"Cock, Paul"

"Oh. Where is that shy Chris?"

"Left her at home. Only CA came to visit."

"I can see that. No. Nowhere except near me."

"Thought so. Well, then."

"I wasn't thinking of disease, CA."

"Oh?"

"Pregnancy."

"Ah."

"Yeah."

"Paul, it ain't gonna happen. I've got it covered."

"You mean your panties?"

"Ha ha. Hardly."

"Oh, so you're..."

"On the pill. Yeah. But let's discuss that another time."

"Oh... okay."

"We gotta clean this up. Lemme climb off."

"Oh, whoops."

"Did I get it all?"

"Looks like it."

Chris ran off without needing to ask where the tissues were that time, and came back with the mess cleaned up as much as possible, and a couple of clean ones for me. I didn't really need them. She really had got it all.

"Time, Paul?"

"Huh?"

"How much time do we have?"

"Oh, at least an hour or so."

"Shower?"

"Shower."

"You going to show me?"

"Yeah, yeah. You know, I used to think you weren't too clever, but I can't seem to keep up."

"That's because I just milked your brains out."

"Could be."

"I know it."

"This way."

"Not yet."

"No?"

"No." She knelt on the floor in front of me, and pulled my briefs to the floor. It was a lot simpler than the last time she'd done it. "Hmmm... that's not much use is it?"

"Not yet. Now get up. I need to return the favour."

We raced up the stairs stark naked. I let her go first. I'm a gentleman. We stopped for towels, and stumbled into the bathroom. I started the shower, distracted by her grabbing at my ass, and then turned and pushed Chris against the wall.

"Listen you, I told you that you're not in charge here."

"Yeah, right."

"Just because you're a few months..."

I couldn't talk any more, as our bodies were pressed together, and she locked lips with me again.

We managed to stumble from the wall to the shower cubicle without breaking the kiss, and we were both under the water before I could take another proper breath. After that, we separated just a little, and actually showered.

I liked the position standing here. I was a little taller than Chris, and could lean down and close my teeth on her shoulders, or kiss her neck. She didn't seem to mind at all.

I got her to turn and scrubbed her back, and she did the same for me. As she was soaping me off, her hands wound around to the front of my body, and she slid them up and down my chest and stomach.

"You know, you're not too bad. You need some work on these, but you have the right material."

"Hey, CA, you're supposed to be a babysitter, not a trainer."

"I'm just saying. Maybe you could spend some time at the gym?"

"Hey!"

"Hee hee. You are so easy to tease."

"Cheeky."

"You are. These are nice." She grabbed my butt, and then slowly slid her hands around the front of my body. "Ooh, this seems to have come back to life."

"You teased it."

"I'll remember."

Pressing close in behind me now, she took my cock into both hands, and started stroking it, sliding her fingers wetly up and down, and pressing her breasts into my back. I just stood there, water running down over my head for a while, and let her play. Eventually I felt I wanted to get a little more involved, and turned around to face her.

"You know, CA, if you do that to me, I might have to return the favour."

"I was hoping."

"Well, not like that then. Hmmm..."

In the end, we found a position which worked better. We faced one another, with the water running down between us, and we could both reach reasonably comfortably. We stood, swaying a little, and felt the hot water run down the fronts of our bodies and meet with the heat we were already generating.

I managed to position my fingers without any help this time, and as Chris stroked my cock, I encouraged her to spread her legs a little, and I massaged her clit under a stream of water. We weren't in a rush, and we took a little longer this time, stealing a kiss now and then, despite this requiring taking breaths and putting our heads under the water. The rhythm and the heat were intoxicating, and I almost forgot where we were, my concentration on the heat, and the stroking of my cock.

As it happened, the position seemed to work a little better for me than Chris, and before too long I was groaning again, as she fell to her knees to watch properly. I shot hard against the glass of the shower, and eventually had to gently remove her hand. I was just a little too sensitive.

Chris stood up, kissed me again, and whispered in my ear. "Missed."

"You were the one aiming."

"I'm inexperienced."

"I'm having difficulty telling."

"Nice?"

"Stunning."

"That's good."

"Yeah. Now, come here."

"Ah, listen, I don't think that's going to work."

"No?"

"Nope. Just the position, I think."

"Oh. Well?"

"Could you stand behind me, like I was with you before?"

"Like this?"

"Uh huh. Let me move under the water. You're not cold?"

"No, no. There?"

"Yeah, perfect."

My hands started from her ears, and slowly worked their way down over her shoulders, slid over her wet breasts, and wandered down past her stomach. I found her normally springy ginger thatch hanging lifelessly under the stream of hot water. That wasn't all I encountered though. I expected to find CA's thighs ready for my fingers, but in fact they were already busy with her own. I admit to jumping a little.

"Oh, God, sorry Paul."

"No, no, that's alright. I was just surprised. You really did leave that shy girl at home."

"Yeah, I... You sure?"

"Yeah, yeah. I rather like the idea."

"Yeah?"

"Yeah. You go ahead."

"I am."

"Mmhmm."

"You could..."

"Yes?"

"Nipples."

"Gotcha."

She turned for a moment, tipped her freckled face up to me, and kissed me, before returning to her work. It didn't take long. She must have been on the edge all this time, and she came quietly, almost whimpering, her body going rigid for a moment before relaxing. She turned back to me.

"This is not, you understand, a reflection on your capability."

"I never thought it was."

"Oh, good."

"Until now."

"Oh, shit."

"Kidding, CA."

"Okay. You sure?"

"Yep. Some other time, how about letting me watch?"

"Okay. If you'll let me."

"You bet."

"Paul, shouldn't we get out of here?"

"Yeah, but... Umm... we better clean that off."

"Do I always have to clean up your mess?"

"Only when you help make it."

"I did more than help."

"Well, then."

"Go on, get out. Useless."

We both climbed rather wearily from the shower, kissed again, and grabbed the towels. Despite being there for the whole production, it's still a mystery to me exactly what girls do when they dry themselves, but it seems to take an awfully long time. Eventually though, we checked over the bathroom one more time, and wandered down the hallway, starkers again, to my bedroom.

I wouldn't have believed it if someone had told me, but the fact is that we were both too tired to get up to any more mischief, at least for a while, and instead we lay there naked, on our backs, and talked about nothing. I noticed after a few minutes that Chris's speech was beginning to slur, and a little while later she nodded off. I hopped up from the bed and pulled the covers up over her, kissed her gently on the forehead, and left the room.

...

I was sitting in the armchair again when our mothers returned, gabbing happily about the movie, and I cheerfully shushed them, waving the remote at the TV. Mrs Coster wandered off to our kitchen, looking for coffee.

"Paul, I hope you haven't sat there the whole time we were out."

"Nope."

"Good. Say, where is Chris?"

"Oh, she was tired, and decided to take a nap."

"A nap? Isn't she supposed to be babysitting?"

"Mum, can you stop it with that? You and I both know I don't need a babysitter."

"Yeah, I know. I know. But Chris needed to get out of her house, and you need someone to just keep you on track, especially with your study. You mind?"

"Nope. Just stop calling it babysitting."

"Okay, deal."

Just then, Chris appeared. I'd taken her clothes upstairs and quietly put them on the bed, and she must have found them without any trouble.

"Oh, hi guys."

"Hello Chris. Your mother is in the kitchen."

"Oh, cool. Is it time to go?"

"Not yet. We're going to have coffee."

"Okay. I just..."

"Paul said. A nap."

"Yeah. Hope that's okay."

"Make yourself at home, dear."

"Thanks, Mrs Brown."

"I'm warning you women for the last time," I threatened, big grin on my face, as I waved the remote at them, "If you don't all shut up, I'm going to get angry. I'm watching the TV!"

Chris was first. "Quiet junior. I'm in charge here."

Mum got in just after. "You mind your manners, Paul. Where do you get that attitude?"

Mrs Coster poked her head around the corner. "Paul, are they picking on you?"

"They are."

"Can I join in?"

I could see now where CA got it from.