CHAPTER ONE
I loved the way Sinead's C-cup boobs moved while I pushed into her from behind. It truly was a great sight. She was bent over the desk in her bedroom, right in front of the window that overlooked the driveway at the front of her parent's house. She was a slim girl, but had recently put on a little extra weight on her hips and boobs (which I was not complaining about!). She used to dance but thanks to a niggling knee injury she had to stop and now she only really exercised by riding her bike every now and then. Her long brown hair reached her lower back and I enjoyed gently pulling on it with each thrust. Sex with Sinead was great, but I could never really let myself go properly with her due to the fact I'm a little bigger downstairs than her frame can cope with. Now I'm by no means saying I'm huge, previous girls I've been with have enjoyed sex with me fine without pain, it's just Sinead. For whatever reason, I cannot push my entire length into her without it becoming uncomfortable and painful for her. So over time I've become used to pushing ¾ of my length into her in a rhythmic way which works well for both parties.
So here I was, mid-thrust, Sinead with her head lowered, eyes shut, moaning her enjoyment, when an unfamiliar car pulled into her driveway. The noise on the gravel snapped Sinead back into reality and she peered over the windowsill to see who it was.
'For God's sake, she sure knows how to ruin things!' she exclaimed as she quickly pulled herself away from my very erect penis and grabbed a nearby towel to wrap around her naked body. She turned and seeing my shocked expression said, 'Sorry babe, THAT will have to be taken care of later. Natalie's decided to pay us another impromptu visit.'
Natalie was Sinead's older sister. Sinead actually had 2 sisters. Laura (19) and Natalie (25) were born either side of Sinead (22). Laura and Sinead still lived at their London home with their parents, while Natalie was now living in a ski-resort in Switzerland. She was a snowboard fanatic and loved the outdoors, so a couple of years back she moved out there to work in bars, teach snowboarding and generally enjoy herself. I have to say I was fairly jealous of her carefree lifestyle. But she tended to pop back to London unannounced a fair amount, perhaps due to homesickness, but more likely to do with a much needed boost in her bank account, which she knew her fairly wealthy father would be more than happy to help with.
'Hey, hey, hey, slow down there baby', I said, lightly pulling Sinead to me. 'I'm sure I can finish off really quickly. I have to leave soon for football anyway so later won't be great for me. Please?' I can't believe I was pretty much begging my girlfriend to let me have sex with her.
Sinead hesitated, smiled and locked her bedroom door from the inside. 'Ok' she said, 'but you have to be really quick, and really, really quiet. We can pretend to be asleep when Natalie knocks on my bedroom door and just head downstairs later when we're done.'
She dropped the towel and lightly pushed me backwards onto her bed, before straddling me and easing herself back down onto my cock. Again, only ¾ of the way in, but if felt so good. Sinead was very tight and it never took me long to cum with her. She threw her head back, eyes closed again and bit her lip to stop her from making too much noise. I could hear Natalie shouting 'hello?' at the bottom of the stairs but I carried on pushing my hips up towards Sinead, feeling myself getting close. Natalie was still shouting out 'anyone home?' as I heard her climbing the staircase and walking along the hallway towards the bedrooms. 'Sinead? Laura? Mum?' she shouted.