I was a young man of 15 when i was invited over to my aunt gina's house for the weekend.Aunt gina was never married 43 years old and lived alone,she also was very wealthy and had recently had an inground pool installed.I was included in being able to use the pool anytime i wanted granted i kept it clean and was in on the maintenance of it during the summer.No problem i said.My aunt was a very attractive older woman with blondish hair short around her shoulders,her body was built medium in size but very curvy to the eye.She liked to wear tight fitting clothes such as jeans or shorts and rarely when i saw her out of her buisiness attire did she wear a bra under her shirts but i did know she was a c cup.I was never really attracted to her until that weekend and a paticular incident that changed our relationship forever. I was greeted at the front door by my aunt she was wearing her shorts and a shirt with nothing else on but bare legs and feet.I had on my swimming trunks and a t-shirt with my flip flops and i had brought my bag with my to stay for the 2 nights and 3 days at her house.She was just watching some tv and it was all of about 2:00 in the afternoon so she said i could go out to the pool and get it ready and she was just going to go change and meet me out there.She turned around as she was going upstairs and said "oh my god,i never properly said hello to you " with that she hugged me tight and kissed me on the mouth like usual nothing different about it but she was very excited to do it to me this time so i was speechless but she did comment "you are getting so big now and im just getting old" i said "no way you look good to me" she said "aw thank you chris". "Let me go get changed ok" i said "alright" with that i went outside. Swimming in her pool i was doing laps like a pro i loved to swim and it was very warm out that day in the 90's and no clouds so it was a relaxation away from the humidity.My aunt was finally in the pool area with her towel in hand she had on a one piece suit which was dark in colour and accuented her very creamy complextion.The suit also rode up on her thighs so it showed off her thick hips rather well.I was for the first time enjoying what i saw even if it was my very own aunt i was getting rather turned on and my cock was growing in my shorts so i stayed in the water.She was walking in the water and began to swim towards me and she was asking if i loved the pool and i told her it was so good that she got it i was enjoying it so much.That made her very happy i could tell. After a while my aunt got out of the pool and laid out on her blanket and got some sun i loved to look at her as i noticed her eyes were closed and her body glistened in the sunlight.Her shoulder straps were down to where her breasts started and it was an added intention to check my aunt out in that position as i could tell her nipples were piercing through her wet bathing suit.I was just swimming around the pool when my aunt asked me to do her a favour and help get her back with the suntan lotion so i got out of the water and sat next to her on the blanket and she handed me the bottle and i shot some of the cream on my palm and began to rub the lotion into her skin applying it first to her upper back and shoulders area.Then down her back a little then she asked me to do her legs also please.Wow now i was going down to each leg and carressing her thighs and her legs and feet and i was extremely feeling hot and hard now.I Was done with the lotion and she said i did wonderful and i have great hands.I was shy and said if she needed any more help id love to do anything.A little too forward for a 15 yr old and her being my aunt she said ok. After about 30 minutes my aunt told me i could use her bathroom to shower on the second floor where her bedroom was because it was a bigger bathroom so i said no problem ill be out soon.I went inside and being fifteen i was so horny i went into the shower and was cleaning myself off when my cock was stiff as a board i grabbed a towel and dried off and looked out the window into the pool area and saw my aunt laid out face down getting sun,i grabbed my cock and rubbed it so hard staring at my aunt in her bathing suit wanting to see her naked in my mind.I jacked off my cock so hard and fast until i shot my load all over my towel.Just then i looked out again and she was getting up.I thought i better finish my shower before she suspects something.