For the rest of the day that Friday my mom, Aunt Kim, and I worked out the details of the plan to give my dad his birthday "present," A.K.A. getting to fuck my mom's sister, Kim. After everything was set, later in that night we all headed off to bed. The following morning I awoke to a warm sensation on my cock. When I opened my eyes and lifted my head to see what was going on, I found my mom was going down on my morning wood.
I just laid my head back down and moaned my approval as I enjoyed my mom's ministrations. Her wet, warm mouth enveloped my rod as she bobbed up and down on my erection. She went up and down a few more times before withdrawing my cock from her lips and saying, "I passed your room and saw that your friend here was already up and couldn't help myself."
She stroked my saliva-slickened dick as she spoke and I told her, "No complaints here, it's a great way to wake up," and put my hand on the back of her head, guiding her back down onto my throbbing member. She took me in her mouth again and kept her hand wrapped around my cock as she bobbed up and down again. I held my hand on the back of her head and pushed her down onto my cock as she sucked, and began slightly thrusting my hips upward to meet her movements.
Before long I was fucking her mouth and her tightening grip on my cock had me cumming in no time. My body stiffened and jerked as I shot cum down my mom's throat and filled her mouth with my creamy goo. She swallowed every last drop as she pumped the rest of my load out of me and sat up smiling. I thanked her for the morning blowjob, she gave me a good morning kiss, and she disappeared into the hallway.
Dad was due back from Las Vegas Sunday morning so we decided to have a backyard bar-b-que to celebrate his birthday later that afternoon. After they got dressed, my mom and Aunt Kim went to a bikini/swimwear shop in town called Triangles and picked up two very skimpy bikinis to wear at the bar-b-que. This would get dad's motor running early, and build up until the pay-off later that night.
While they were getting their bikinis and the evening's alcohol, I picked up the food. I beat them back to the house and started marinating the meat I got. When they arrived home I asked to see their purchases. They reached into a shopping bag and held up bikinis that suited the name of the store perfectly. They were simply small triangles held together by string.
Aunt Kim then reached into another bag, pulled out some lingerie, and said, "And THIS is for later in the evening," as she held it up in front of herself. It was a sheer white babydoll nightie with matching sheer thong panties. "Your mom's got one too."
I asked them to put on a fashion show for me and mom and Aunt Kim headed back to the master bedroom to change. When they came out they were wearing the bikinis. I showed my opinion of their suits by whistling and applauding. Aunt Kim got a bright teal colored suit and mom chose a hot pink one. Both of their tops BARELY covered their nipples, and both had thong bikini bottoms. I had never seen my mom in such a revealing bathing suit, and I'm pretty sure she'd never worn one that small in her life. In fact, the bottom was so small, I could see a little of mom's pubic hair peeking out the sides of her bikini bottom. "Dad's gonna LOVE those," I told them, as my eyes wandered over their nearly-naked bodies, "but you may need to do a little gardening."
"Yeah, I noticed it didn't quite cover everything down there," my mom said as she looked down at her bikini bottom.
"Hey, why don't you shave it ALL off," I suggested, "Both of you. I'm sure that will turn dad on."
"Good idea," replied Aunt Kim, "and since you won't be participating in the fun tomorrow night, maybe you could at least participate in getting us ready," she said, as she looked at my mom with a devilish grin.
"Great, I'll get my electric trimmer and meet you in the master bathroom," I said as I headed to the hall bathroom. I retrieved my trimmers, and then went to mom's bathroom. They were waiting there, both still in their bikinis. "Who's first?"
