I am 18 and last summer I had an interesting experience with my friend Alex's mom. He invited me to go to their summer cabin for the weekend and I was immediately attracted to his older sister Pam who was 20 and had a knockout body. Each day when we went out on the boat Pam wore a super sexy thong and a small top which could not hold her nice tits. I tried not to stare at her but her ass was so smooth and when she put lotion all over her body in front of me I almost came in my shorts. Pam obviously knew the effect she was having on me and she would often laugh and flirt with me.
One afternoon as we went out on the boat I began to get a raging hard on as Pam's oiled up body was right in front of me. I had on a pair of sunglasses which made it easier to stare at her and not be noticed. To my suprise as I was staring at her Alex's mom Maxine was rubbing her twat through her bikini bottoms. Maxine must have noticed my hard on and I could also stare at her without being noticed. My infatuation with Pam had caused me not to pay much attention to Maxine. I now noticed that her white bikini barely contained her nice firm tits and the her bikini bottom barely covered her pussy. As Pam got up and moved to the front of the boat Maxine took her place right in front of me. We were in the back of the boat so when Alex's dad was driving and Alex and Pam were in front of the boat it left Maxine and I to ourselves.
Maxine smiled at me and lowered her top exposing her lovely tits and her perky nipples. Maxine began to tweak her nipples and my hard on got even harder. Maxine then took her bikini bottom and moved it to one side while she fingered her hairy pussy. I could not believe how this older (age 38) woman was masturbating in front of me but it was sexy. Maxine slipped two fingers in her pussy and began to slide them in and out. I followed her lead and carefully pulled my cock out and began to stroke it. When I did this Maxine licked her lips and I begn to jack off harder. As my shaft was rock hard and my head was swelling it was obvious to me I would soon be coming in front of this sexy woman. Maxine leaned forward and took my cock in her hands. As she stroked my cock the excitement of having her jack me off while her husband was only 5 feet away turned me on. She then took her left hand and let me suck on her fingers that had been inside her wet pussy just a few seconds earlier. This put me over the edge and as she held my cock next to her I began to shoot my load on her tits. I was so excited that the first few strands landed up on her neck and the next few strands covered her sexy tits. Maxine smiled and rubbed my white come on her tits and licked some of it off her fingers. Nobody in the boat had seen our expierience and as I sat back down Maxine just continued to smile at me.