I get offers all the time, but I have never taken anyone up on it because sex with Katie is the greatest, and I want it to stay that way.When this adv...nture happened, Katie had been gone for 5 days, one of the longest trips she'd been on in awhile. I expected her home late on Saturday night. It was only Saturday afternoon, and I was missing her in a big way. I was lounging on the couch watching the hockey game, but my mind kept drifting off to her. It was weird; my whole body ached for her.. . and then, with a rush of sensation and just a little pain, he penetrated her! Anna bit her thumb trying not to cry out .. and then couldn't help but moan with pleasure as he kept pushing, the long stiff shaft sliding through her sphincter, penetrating her rectum deeper and deeper with his long hard cock! She concentrated on relaxing her sphincter, her entire world centered on the cock penetrating her ass. Totally carried away, her other hand slid down between her legs, to stroke and rub. I wasn’t dating anyone and hadn’t jacked off today.She made some halfhearted attempts to find a new job while I was at work but did catch up on the deep cleaning my bachelor apartment really needed. It was a bit of a treat for a horny guy to find an attractive naked woman waiting even if it was my sister. She seemed to prefer being unclothed although I had to disappear to the bathroom for relief from time to time.Then came Friday when I worked from home. Sara played the personal assistant role. I start with stroking your cock with my hand. Slowly at first but then going faster. Your groans urge me to keep going. So I start by licking the head of your dick and the pre-cum already forming there. I start taking more and more of you into my mouth. Then when youre about halfway in, I start sucking. Moving my tongue up and down your shaft. I feel your fingers wrap around in my hair. I know what is coming next. You start applying pressure to the back of my head, pushing me down your cock.