A few days after Christa slept over with my sister and I feigned sleep while she got under the blanket with me, she was at the house with my sister during the day sunbathing. I couldn't resist spying on her. She looked incredible! She had a one piece bathing suit but it must have been last year's because it was a bit too tight. The way the material was so stretched over her pussy mound was an unreal sight but I only caught a glimpse of it for a split second here and there.
Her ass was suffering the same condition with the tight material and I was able to see that well while they were laying on their fronts flipping through magazines. The back of the suit constantly crept its way into the cleft of her ass cheeks and she pulled it out every minute or two. I was going crazy watching her with my huge hard on and hearing my heartbeat coming up my throat out of my open mouth. Eventually, she got up and came inside but my sister stayed outside, so I darted into my room as I pretty much knew that she must be heading for the bathroom. Sure enough, she came up the stairs and went into the bathroom.
When I heard the water running and then the bathroom door open after she was finished, I swung my door open and waved her into my room. As soon as she stepped in, I grabbed her ass with both hands while I kissed her, kneading the firm flesh of her buttocks in the tight suit. My right hand shot around in front and moved between her legs, palming her pussy, feeling it's heat and rubbing it. Pulling my cock out, I put her hand on it and she pumped it with a tight grip. She breathed deeply and moaned in my mouth and I said "We should meet in the cabin. How about 8 tonight? That's well before your 10 o'clock curfew."
"Yeah, ok." she panted as she tried to spread her legs to accommodate my stroking hand. I pushed my cock between her legs and bumped at her pussy through the bathing suit material.
"I can hardly wait." I said, and she broke our kissing and started to walk toward my door. I followed close behind her, reaching around and groping her tits before she exited and went down the stairs. My cock stayed hard as a rock for another half hour after she left and any time I thought about her it would twitch and start growing so I tried to stay focused on different things to burn up the time.
I only had minor preparation to get the cabin ready, making it up to standard to use after fucking Jann and Shera in there. I had already lit a couple of candles and while I waited for her, I was half hard and checking for her every few minutes. A tap on the door came a minute or so after I had just looked out so I opened it quickly to let her inside, I noted that the sky had a little light left, but it would soon be dark.
"Hi. I'm so happy to see you." I said, looking at her in the candle light. The two candles added to the shadows dancing in the dark cabin. My dick twitched and lengthened. The ambience was heavy with the weight of the forbidden. "How are you?" I asked her, trying to keep it light.
"I'm ok." she answered
"Ok. First..." I said, and I moved in and put my hands on her shoulders, "you have to close your eyes." She closed her eyes immediately and giggled. I kissed her on her cheek softly and slowly but then kissed her mouth and she kissed me back enthusiastically, her arms stretching around me. Pulling her against me and feeling her body press on mine, my cock hardened and pulsed.
As I moved my hands over her she gasped and breathed deeply while I slowly explored her curves, pressing my palms and fingers lightly against her. The memories of how she was naked, rubbing herself off using my dick as the main device in her masturbration just days ago, was driving me mad.
Christa moaned "Mmmm." while we kissed. She had a small skirt on but she was also wearing tights that could be worn without a skirt. As my hands moved down below her waist and made their way up under the skirt, gently massaging her upper thighs and ass, she kept moaning in my mouth.
Taking a firm grasp of both of her ass cheeks with both hands, I kneaded them while she smothered me with frantic kisses, still moaning but grunting as well. My erection was at full size and rather uncomfortable in my clothing, so I moved Christa over to the camp mattress and blankets.
"Lie down now ok?" I stated more than asked between feverish kissing. I pushed her downward, and while we descended to the firm cushioned mat, I unbuttoned my jeans.
As we stretched out and continued frantically kissing, I cupped her little breast with my right hand whispering "I love these." pushing up on her little cupcake and rubbing over the nipple causing her to exhale obviously.
She moaned another "Mmmm" into my mouth, and I noted that her eyes were closed. After giving her other breast a couple gentle gropes, I moved my hand down and quickly pushed my jeans down a little to take pressure off of my throbbing erection.
Sliding my hand onto her ass, I kneaded her firm flesh, squeezing and cupping as my dick flexed and strained, still confined by my underwear. A quick reach down to my waist area had my underwear off of my hard cock and I pushed them down with my jeans mid-thigh.
