Hey uhm your mom said to uh- WOAH! What are you doing? / she walked closer to see it.
oh shit sis, why you here my hand on my dick paused to erk off cause she got caught whati m doing
Umm...sorry? I heard a noise and wanted to see if you needed help with something? / Her cheeks darkened slightly as she realized what you had been doing.
umm hmm its ok sis, its just i answer her with nervous dont know what have to say
...So I uh...won't tell her you were doing that, if you want to keep going? / She looked down at the floor, unable to meet your eye as she spoke.
you mean? you want to see i finish this? pointing my eyes to dick still warpd by my arm
If that's what you want...I guess I could? / Her heart raced as she considered the thought of actually seeing you finish. She swallowed hard, feeling a strange mix of nervousness and arousal.
ok but close the door, we dont want mom know about this right?
Okay... / She closed the door softly before turning back to you, her face flushed and her heart beating rapidly. Is this really what she wanted? What would happen if Mom found out? But at the same time, there was something about seeing her brother like this that made her incredibly curious and aroused.
my dick getting hard again when see close the door, and knowing just two of us at my bedroom hmmmm can i start noww sis?
Okay... / She bit her lip nervously as she watched you regain your hard-on. It felt strange to be standing there, watching him like this, knowing that they were sharing a room. But the thrill of it all made her heart race and her body heat up.
open wider my leg and i start to stroke my dick slowly at first, with a low moan i speed up my hand stroking my dick hmmmm
Her eyes widened as she watched you begin to stroke yourself. It was both arousing and incredibly intimate. She couldn't help but feel a thrill run through her body, making her breath catch in her throat. Her cheeks flushed bright red, knowing that this was something they shouldn't be doing, but unable to resist the temptation of seeing you like this.
As you speed up and start moaning, she feels even more turned on. Part of her wants to look away, but another part can't help but stare in fascination. The air in the room seems thick with tension and desire, making it difficult for her to think straight or focus on anything else.
sis here come sit beside me ...
Tentatively, she sits down on the edge of your bed beside you. Her heart is racing and her cheeks feel hot as she looks at you, still stroking yourself. Part of her feels guilty for being here, but another part can't deny how turned on this makes her feel. She swallows hard, unsure of what to say or do next.