Seductive sister

“Yeah, Josh, I hope you don’t mind, I grew a little for you so you wouldn’t worry so much about me hurting myself while using your weights.” She giggled, looking at her brothers erect cock, who’s head had now escaped over the top of his shorts. This excited her, she couldn’t seem to get enough of the sexual tension, and seeing her brother’s large dick head again made her need to see the whole thing. “You seem to have grown yourself. It seems that no matter how big I get you’ll still be my big brother. You should let that out you know, to breathe. Besides, I showed you mine. It’s only fair.” Her brother had stood up, probably expecting to give an excuse to leave, but stood frozen in place. “I know how that feels, you better let it out before this happens to your pants…” she gestured to her exposed nipples and began pushing one around with her finger. “It felt so good when these burst through. But let’s be fair then, I’ll let my monsters out if you let out yours.” She said smoothing her hands over her breasts, drinking in her big brother’s gaze. The thought of willingly showing his 19 year old sister his penis seemed unconscionable, but he did really want to see her boobs…. And finally, reluctantly, Josh slowly dropped his shorts, allowing his huge 9” dick to stand erect. Liz’s dick responded by twitching as her eyes lit up at the sight, but luckly was unable to get hard so soon after masturbating.

“My turn” she said smiling innocently, as she began to take off her top. Her nipples got caught in the holes they tore, but she easily got it off. Josh nearly shot at the sight of them. There were her two large softballs, with dark pinkish-brown nipples aching outwards from her chest. Liz began to play with her nipples, twisting them and pulling them. “Oooh!” she let out getting exciting from these new feelings. She’s never played with her nipples before, and they were more sensitive now than ever. She was getting lost in nipple – gasms. Josh couldn’t help it, and his hand began stroking his cock on its own, unable to resist looking at his increasingly not-so-little sister play with her huge nipples. Liz’s dick was beginning to harden anyway at all this, despite being so soon, still hidden within the large spandex. Her nipples began to lengthen as well, which to both was a surprise and very welcome. Almost without warning Josh shot his load across the room, landing yards away on Liz’s leg. This was all it took to make her shudder and shake as she came in her shorts, and Josh got to watch the show.