Aunt Julie encouraged me to be personal trainer to my cousin Jenny for the summer, by way of a fantastic blowjob and tit-fuck, which was just the down payment.
I had lusted over her body and her breasts for years. Apparently, she knew this and used this to her advantage, manipulating me to do what she wanted. But I wasn't going to complain.
And to be honest, the prospect of spending a lot more time with my cousin Jenny didn't bother me in the least. In fact, I looked forward to it -- she was pretty and fun.
It seemed Jenny had stopped exercising. She had low self-esteem and confidence, especially when comparing herself to her hot and athletic sister Josie.
Somewhat athletic myself, I had been training for a triathlon, going out regularly to bike, run and swim. I agreed to take Jenny with me on runs or rides as often as I could, easing her into a fitness routine.
We started out the next morning at the local bike shop. I told the cute attendant Sarah my aunt and cousins were staying for the summer. When that realization was made it seemed to improve her smile and she flirted with me. I knew I would have to come back and give her attention some other time.
For now, she helped us pick out hybrid bikes in the right sizes and colors. Aunt Julie got a beach cruiser. Then she rang us up and off we went.
Each morning we rode one of the various picturesque biking trails found around the lake. We stopped every so often to take in some of the viewpoints that also had benches, lunch areas and hiking trails.
At first, we did a couple of miles. Then after a few days, I transitioned to get a couple miles in before breakfast and a few more miles after. Occasionally we would get passed by more serious riders, and a couple of times we saw young men that checked the girls out, but nothing more came of it.
After a week, we were finally going to try and go entirely around the lake in one session -- Aunt Julie would just cruise a couple of miles and turn back when she felt she had enough.
Biking to me was easier to get back into the swing of things. Running was not complicated, but you have to build up endurance and it can easily lead to someone giving up. Although I wanted to see them in swimsuits every day, I decided to keep swimming recreational for now.
I thought Jenny would have a hard time. But everyone was supportive, and Jenny had a good attitude about it. I think it was nice to have someone non-judgmental helping. I made a point not to compare them. They were just my cousins, and we were just having fun and aerobic bike rides to get in better shape in general and to enjoy the view of the lake and surrounding terrain.
A few times, I would let them take the lead -- otherwise they might get too far behind. Plus, I enjoyed watching them from behind. Josie was always more ambitious and motivated, and exercised constantly to maintain her fit physique. She naturally took the lead. Her butt was toned and slender.
Jenny fell in behind her sister, and I could check her out more thoroughly. Jenny had more than Josie, but I would take something to hold onto over less. Something about plowing into a woman from behind, when you have curves, they press into your lower abdomen. You want meat but not junk.
I must have been daydreaming about my cousin's rump when Jenny turned back and asked, "Doing OK back there, Jack?"
Did she wink at me? Had she seen me starting at her behind? I smiled and said yes, then energized into the last few miles of our track around the lake.
It was late afternoon when we finally arrived back home. Josie raced in called out 'first' ahead of her sister, I guess. They were tired, but that was expected. I could feel it, but I was used to the exertion, the pace. The girls were going farther and getting stronger each time out.
Time for a quick shower after the workout, and then lounge out on the back deck.
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To my satisfaction, the girls changed into swimsuits and headed outside. We lounged on recliners for a bit, then as the sun went down that was when we liked to get into the hot tub.
Aunt Julie was there as well in her one-piece covered by shorts. Her cleavage always got my attention, and each time now I recalled our tryst from before. She had been nice and playful, but there was nothing sexual between us since. Too bad, because I had dreamt about having sex with her every night in all sorts of ways. But then, I had done so for many years before, so that hadn't changed.
As I joined the girls in the hot tub, Aunt Julie went into the house and came out with a round of Mai Tai drinks she made for us. We have a stereo inside and external wi-fi speakers under the overhang to project music out for us onto the deck.
"This is the good life," I said, and we all cheered and clinked our glasses -- the three cousins in the hot tub, and Aunt Julie from the nearby lounge. "I'm happy my recruits made the circuit around the lake!"
"Thanks for being such a good trainer!" Josie gave me a wink. It seemed like she was pulling her shoulders back and pressing her chest out for me to look at. I think she just wanted a compliment, to know I saw. Her tits were perky but not large. Still, a girl in a bikini will get looks. Once she saw me checking her out and our eyes met, she leaned back and resumed her normal posture.
"I appreciate you helping me out too," Jenny chimed in. Did she do that to draw my attention away from her sister? Or was I just imaging the sibling rivalry. "I hope I haven't slowed you down too much." She was less athletic, a more laid-back type. Kind and friendly, she was easy to like once you got to know her. But I thought her outer beauty was there too. Different perhaps, but no less alluring.
Jenny's breasts were larger, but she was a bigger girl anyway. But after tit-fucking their mom, I had a renewed appreciation for big tits and what they could offer. They don't have to be the largest, but you still need something to press against. It wasn't always the size, sometimes it was how you used them.
"It's no worry at all," I said honestly. "I have been doing more rides and runs than just what I take you two on. Plus, I like the company, and you two are awesome."
"Oh, I bet," Josie said. "I know why you let us ride in front sometimes," she said playfully. "To check out our bottoms on the bike seat!" She laughed, splashing a bit of water towards me.
"Well," I stammered, "can you blame me?" I replied somewhat playfully.
"Admit it," she pressed. "Which one of us has the better butt?" She stood up and turned around like a model on a runway. I wasn't sure if it was the alcohol, but she was either flirting or teasing.
I thought my own preference shouldn't be the basis for them feeling good about themselves, particularly in comparison against each other. I didn't want to make Jenny feel any less pretty.
"Aunt Julie!" I called out.
"What?" she turned towards us from her position reclining on the lounge.
Looking down at my empty glass, I replied with "I think I need another drink!".
Aunt Julie got up to go inside and make more. I watched the beautiful MILF and tried to hide the lustful thoughts I had for her. I had deflected, but also I was trying to avoid the comparison of the two sisters.
Josie looked over at Jenny and they gave each other looks. Then Josie got out to use the bathroom. I tried not to stare, but it is hard when a beautiful young woman leaves the water. She used a finger to adjust her bikini around her ass cheek. Did she do that on purpose, or was it normal?
"I realize I'm not as pretty as they are," Jenny said breaking the silence.
"What?" I turned towards her. I wasn't sure how long I was staring, but it must have been obvious.
"You were ogling my mother
and
my sister," she said. "Checking them out from behind." I was caught and I knew it.
"You're just as beautiful, if not more so," I tried to recover.
"Nice try. You don't look at me like that."
I thought for a moment in silence, trying to come up with the best response.
"When you get out and go inside, you are walking away and won't see how I am totally checking you out from behind," the logic seemed good to me.
"Oh really?" she asked, smiling but not fully believing.
"I'm an equal opportunity ogler."
Jenny smiled as she thought to herself. "You're so sweet, Jack."
Then Jenny also got up to go inside. As she reached the sliding door to go in, I said quietly but loud enough for just her to hear, "man that's a nice ass."
She paused. Using a finger, she traced the inner lines of her bikini bottoms like her sister had. But instead of smoothing them out, she pulled them in to her ass like a thong. Just for a second, but it was noticeable. Then she re-did it and spread the bottoms out again and went inside.
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It was after dinner, and we had drinks out by the firepit on the back deck. We had light banter and it was getting late. At some point the girls went back inside, and it was just Aunt Julie and I that remained.
"You had better be careful what you start," Aunt Julie said as she refilled my drink.
