9:00 A.M
*Crrrrreak*
The door to the guest house in the backyard slowly creaked open; my sister entered the living room with her headphones in and on full blast. She wore a grey sweatshirt and a pair of tight pink spandex booty shorts; she took a sip from her protein shake and bent over to place it on the floor beside her. The shorts gripped tightly around her long legs and thick thighs and were already starting to ride high up into the crack of her ass. My mouth was all but watering and my eyes were glued.
My sister was allowed to live in the large guest house in our backyard, all alone and rent free for some reason; while I was left in the main house with both of my parents. My father had always favored my sister for some reason; perhaps he himself wanted to fuck her. I suppose I'll never know; what I do know is, there isn't much my sister wants that she doesn't have. She is covered in tattoos like any stereotypical spoiled yet rebellious teenager, despite being 21; for her 18th birthday, my dad even went so far as to pay for her breast implants. Her lips were full from injections and her body was covered in more piercings than I could count. Her hair was cut short, shaved on the sides and long on top; bleach blonde. Think Ruby Rose from Orange is the New Black, except as an upper class Hollywood blonde bimbo.
All things aside, my sister was smoking hot and she was about to begin her daily yoga routine; I was about to begin my morning ritual of drooling all over the place and occasionally stroking my cock to orgasm while watching. This had become both of our morning rituals in the last few weeks, although she had no idea I was watching. She stripped her gray hoodie off over her head, exposing her small and tight waist; her abs were nicer than my own. Underneath the hoodie she was wearing a skin tight black sports bra to restrain her massive enhanced breasts; she tossed the hoodie to the side and pulled the waist band of her shorts down a bit, as they were beginning to ride high forming a camel toe.
As she folded the waist band down a bit lower, I noticed she had a tattoo just above her pelvic mound and she had two body dermal piercings on each "dimple" of her hips; I'd never seen either of these before today. She began her routine as she does every day and dropped to her knees on her yoga mat; she spread them far apart and folded forward to where her arms were stretched all the way above her head and her tits were pressing the floor. I don't know the technical yoga term for this, so we'll just call it "doggy style." She kept her arms stretched out and raised her head, she arched he back and began rocking back and forth on her knees; bouncing her ass up and down very slowly.
My cock was rock hard by this point; my sister's ass drove me crazy. She crawled her way back up to where she was sitting on her knees with her back straight again; she arched back and put her arms behind her back and grabbed the tips of her toes. With her hands placed flat on the ground she pushed upwards and thrust her hips forward into the air while arching her back; before slowly anchoring her ass back down to the floor. Her rounds ass rest upon the balls of her feet and her thighs were pressed against and folding over her thick hips. The moisture and humidity of the guest house had started to build up right on time and tiny drops of sweat began to flow down her neck, over her collar bones, and down into her cleavage.
She pressed one knee forward and bent the lower half of her leg to the side while holding her ankle; she pushed her other leg out straight stretching it as far back as she could. Another yoga term I'm not familiar with, so we'll just say she was making and "L" shape with her legs. Her shorts were now riding all the way up her ass and both of her ass cheeks were perfectly exposed, taking shape right before my eyes. It was almost too much for me to handle, I had to slow the stroke on my cock; pre-cum was leaking everywhere, all over my shorts. She turned her head to look the other direction while stretching in this pose and then turned the other way, looking towards the door; I calmly pulled it to appear shut and cowered behind it. I could have sworn she spotted me; luckily she had not.
She sat up to her knees once more and to my surprise, started to remove the skin tight sports bra; she struggled to pull it over head as the sweat was sealing it to her skin. This was not normally apart of her routine; through all of my spying on my sister I had never seen her with less than a bikini on. My heart was pounding to say the least. The sports bra slid slowly over the large mound that was her breasts; smoothly over her tiny pink nipples... They were beautiful and as I had suspected they were pierced. She pulled the bra overhead all the way off and you could spot the tiny surgery scar from her implants; she tossed the shirt to the side and sat for a brief moment taking a deep breath. Her tits weren't too big like the cliché breast implants of the 90's; they were a good, perky size and they sat amazingly on her chest.
Sis laid on her side on her yoga mat and placed her arm above her to where her head was resting in her hand; this pose is similar to how you'd lay on the couch and watch TV, probably. She extended one of her legs in the air and pulled it up closer to her body; my eyes were stuck on her crotch as the cloth covering her vagina was increasingly being pulled further and further up; she must have her clit pierced as well, as I could see it protruding through the shorts... Just maybe if I was lucky I'd get a glimpse of her pussy. She pulled her leg back even further and placed her knee upon her forehead; her pussy was begging to bust out of those shorts just as my cock was begging to bust this load. My whole body was feeling the effects of the inevitable orgasm and I began to shake; I lost my balance and fell forward, catching myself before falling into the guest house but not gracefully enough to stop the door from flying open.
My sister's head snapped to the door and she froze in her pose like a deer in the headlights; she yanked her headphones from her ears and sat up grabbing her hoodie and covering her tits. I was lucky enough to shove my cock back into the waist band of my shorts before she was able to catch a glimpse of it but she still did not look happy.
"Matthew?!" She scowled. "What the fuck are you doing right now?" She yelled. Her tits were barely able to be covered by the hoodie and begging to be set free. I was stunned as well... Like a deer in headlights.
"I... Uhh. I was just gonna see if you were home." I stumbled over my response. "What the fuck are you doing in here!" I asked, defensively.
Sis shrugged her shoulders and went on the defensive. "I... I'm... Look this is my house, so it doesn't matter what I'm doing." She continued, "Oh my god, are you...?" Her eyes went wide and I knew what she was about to say; she stood and one of her tits fell out of the cover she was providing as she tried to shove me out of the guest house; I was face to face with her nipple.
"HARD?!!" She yelled.
I couldn't even consider coming up with a response, I simply turned and ran for the hills back to the house; the door to the guest house was slammed behind me. I was so afraid of what would happen next; Mom and Dad weren't due home for a couple of hours but what if she calls ahead of time to tell them? Oh my god, I can't even begin to imagine what would happen if my dad found out I was spying on and jerking off to his "baby girl." He'd probably rip my arms off... or my dick. What if she told my girlfriend? Or even her friends! I could hear it now:
"Oh my fucking God, guess what? I caught my little brother jacking off while watching me do yoga!! Can you believe that? What kind of sicko does that?!" She'd go on and on. I'm never going to hear the end of this...
I sat down to watch TV in the living room to clear my head; at least that was my intention. Instead I ended up standing by the window looking out the shades towards the guest house to see if my sister was calling anyone or coming up to the main house. After an hour or so of watching the guest house I thought I was in the clear, perhaps she'd brushed it off. That is until I saw her lock up and start towards the back door; I closed the shades gently and leaped onto the couch. I laid nonchalantly on the couch flipping through channels when my sister calmly entered the room.
It looked as if Sis had taken a shower as she was all made up and ready to leave the house for the day; she was now wearing a silky floral top with no straps over the shoulders (I believe the term is "cami" or "tube top" again, I'm not expert); along with a skin tight pair of jean shorts that would undoubtedly ride their way up her ass. She slowly walked to the middle of the room and stood in front of the TV; I didn't acknowledge her presence and moved my head over to continue watching TV.
"So..." She began, "Should we talk about this morning?"
I tried to play dumb and looked at her half puzzled, half embarrassed. I could feel the blood rushing to my face.
"Well?" She asked.
"I don't know what you're talking about sis." I boldly responded.
"Yes you do... And if we don't talk about it then I'm going to tell mom you were playing with yourself while spying on your sister!" She threatened.
"What?" I panicked. "You wouldn't..."
"Try me." She said, strongly.
"Okay, fine. What do you want me to say?" I asked.
"Why were you spying on me?"
"I already told you, I wasn't spying. I was just checking to see if you were home..." I continued to put together a half assed lie.
