Serving Your Sister: Ch.4

Not wanting to displease your newly  bigger sister, you put on a swimsuit and went down to the hot tub on the  back porch. Molly was already there, with only her head sticking out of  the water.

"Oh good,  you decided to join me. I was worried I'd been a little too forward earlier."

"Some time in the hot tub might feel nice," you said. "It's been a crazy weekend."

"Mmm I know. Things will never be the same again."

You  climbed in, sitting across from your sister. Her legs stretched across  the whole tub and she had to bend them to fit properly. You glanced down  to see what she was wearing and saw it was a tight read bikini,  probably one of mom's, that barely contained her amplified assets.

"Something you want to see, lil bro?" Molly smirked.

"Uhh..."  you thought about pretending you weren't turned on but figured she'd  see right through your lies. "Yeah. I wanna see your boobs."

Molly laughed and looked impressed with you.

"Finally!  That's what I like to hear from you, mister! You'll get a chance to see  them in all their glory, but first I want to have a little fun with  you. Come over here."

You obeyed and slid over to Molly's side  of the tub. She seemed so big compared to you even though she was just a  few inches taller now. She grabbed you and placed you on her lap with  ease. That was a little weird. She wrapped her arms around you and cooed  in your ears,

"How does this feel, Tim? Do you like having your big sexy sister take care of you?"

Your boner told Molly everything she needed to know. She put a hand on it and began to stroke.

"Molly..."

"Shhh.... let me take care of you like a good big sis."

She  kept stroking your cock and playing with your balls until she sensed  you were close to cumming. Then she pushed you off of her and suddenly  stood up. She seemed to rise endlessly, water coming off her body and  dripping from every delicious curve she possessed. Her tits were pushing  her bikini to its limits and her womanly hips sucked in her bikini  bottom, making it no more than a cover for her pussy and ass crack.

You stared at her in awe, with your raging hard on, feeling blueballed.

"Keep  touching yourself," she commanded. "Stroke your big hard dick for  Molly. Mmmmm that's it, Timmy. Pleasure yourself thinking about me....  thinking about THESE"

She flung off her bikini top and her massive  tits bounced free. They were perfectly round and had a nice perkiness  to them that only young breasts do. Her nipples were erect and proudly  displayed as Molly shook her chest, making the flesh jiggle for your  entertainment. You couldn't contain yourself anymore and had a massive  cumshot, probably the biggest of your life. Molly grinned when she saw  this and knew that her power over you was absolute.

"Good boy..."  she purred. "Now. I'm going to go and do a little growing and invite  some friends over. I'll visit you in your room later tonight. Until  then, I don't want a peep out of you, got that?"

You nodded. She bent over, her boobs in your face and her mouth just above your eyes.

"Good. Love you bro!!"

Then  she pushed your head into her boobs and smooshed it there for a second.  You wished she never stopped, they felt so soft and warm. When she let  you free and climbed out of the hot tub, you were left sitting in the  tub, watching her colossal ass shake, wishing you could give that a nice  squeeze too. She'd left her bikini top in the pool and you grabbed it,  rubbing your face and then cock all over it, practically worshipping the  thing that had tried and failed to contain her divine breasts.