I never felt sexually attracted to my sister growing up. She is only 1 year older. When were young i have memories of her telling me to lay down, she would them unzip my pants, pull down my underwear and squeeze my penis/testicles. She called it playing doctor. I remembet liking it back then but i realized when i think about these events in the present i get extremely aroused. I think this is because she kinda introduced me to sexual feelings in a way, so i associate them with her. I cannot hide though that i still find her to be very sexually attractive in the present ( large breasts and very full butt) I can not help but be aroused. I obviously never wanted her to know that she turned me on.. she did find out though which was the most embarrassing day of my life. I literally got a 100% full erection sitting next to her at the beach. There was really nothing i could do at that point but look down and try to make it go away. She did see it after a few mins and she tried to act normal but ended up laughing just out of emberassment i guess.
Many of my friends over the years have also been sexually attracted to my sister (they would talk and joke directly to me about her breasts, ass, pussy, etc all the time).. and i think that kept me associating her with sexual acts.
On top of that two of my really good friends had actually sex with my sister and i she didnt know that i knew. My friends thought i was pissed but it gives me a boner thinking of her pussy getting fucked hard..
now i daydream all the time about my sister getting fucked really hard in the ass while her tits are bouncing and she is rubbing her empty pussy hole.
Her breasts are perfect, every time i see her in a bikini i get aroused immediatley and i have to push it down. I wish i could squeeze her breats for the rest of my life they are huge and pale.
My last sexual encounter happend with her a few years ago when we vacationed in miami. Me and her shared a bed and my parents shared the other. Earlier in the day i had caught a glimpse of her naked boob because a wave knocked her over and her strapless top slipped right off her right tit. The part of her boob was so pale that i had to do a double take. She was embarrased because she saw me stare at her nipple.
Already horny from that, i wanted to cum on my sis that night. I waited for when i thought she was asleep. Then i pulled my patns down under the sheet and started stroking me cock inches from my sis.
She was facing away from me with her butt protruding towards me. She was wearing blue sweats with no thong or panties.
I remember the amazing feeling i felt when pressing my cock and balls against her butt.
At this point i felt like she was asleep so i very lightly reached around from under her tshirt and touched her nipples.
I almost came as soon is i tocuhed her tits because i was still keeping my dick in between her butt cheeks. Then i got the great idea to just slide the sweats downa few inches. Ill never forget the feeling of my hard cock directly touching my sisters plump butt cheeks. I recall shoving my penis in between her cheeks which felt amazing. So i came on the very top of her crack and pulled her sweats up and went to sleep.