I had helped Katie out at work. There was some shuffling around and people were being moved and the like. I managed to convince our boss that it is of his benefit to move Katie into a section near where her partner is so it was a win win situation.
To celebrate a party was organised at her house. We all arrived with a few of our other work mates and started to party hard. The drinks flowed freely and snacks were dutifully consumed until late into the evening. The group slowly dwindled away as the drunk and worn out left to recover and entertain themselves.
Soon enough there was just the three left. Katie, her sister, Nicole and me. As we continued to drink and get loud I noticed the clothing on the girls was b ing stained from spilled drinks and food. Natural encouragement had their shirts off in no time. So there we were sitting, talking about whatever came to mind and having a good time. Nicole excused herself to go to the bathroom and left Katie there with me. Katie said she appreciated what I had done at work and she had wanted to thank me.
Her reward was quick to work out as she slipped her hand down into my shorts. As she caressed me I felt my shorts tighten. She assisted me in my pants removal and continued to stroke me hard. I felt the gentle caress and the heat of her breathe as she lowered her mouth onto my now engorging cock. I closed my eyes and savored the moment as I felt her saliva lubricate the shaft as she raised and lowered her head in my lap. I was only partially aware of Nicoles return.
Meantime Sean had awoken from his quick nap and was looking for his partner. He was a little suprised to see her there in my lap but was gracious all the same. He took the opportunity to help Nicole out of her soaking panties and bra and started to lick her snatch gently, from base to her clit. The action was hotting up and I was getting the urge to slide my cock into Katie. Katie was watching her man lick her sister out and was rubbing her clit vigoursly, all the while sucking me to the point of cumming.
I could stand no more and said I had to fuck someone. Nicole was near orgasm as it was when Sean offered her up. I lined her up and slide deep into her wetness. Her sighs of delight encouraged me to pump slowly in and out as I watched Sean removes his partner bra and postion her to straddle him. I tried to time my thrusts to the same as the rise and fall of Katie as she impaled herself on Sean, but the smell of mixing juices, the sounds of the sexual grunting and the fact Nicole had my cock in her velvet vice squeezing and pulsating caused me too far. I managed to pull out totally in time for my jet of jizz to spray up over Nicoles pussy and onto her stomach.
Sean did not go much longer either. Katie managed to jump off long enough to grab his shaft and aim it up her body, pumping as it pulsated out. We all had a laugh and cleaned ourselves up.

Since this party I have invited them around for a group get together. They have agreed to e around next week. I will keep you posted.