I Share A Room With My Sibling And I Am Horny

me and my sibling share a room specifically a bunk bed as money is tight. this is fine but the problem is im horny all the time. about 2 hours ago i was reading porn out of curiosity and it was so fucking hot. while i was reading it i felt myself cum. i put my hand in my panties and slid my finger up from the bottom of my pussy to the top to feel the sticky substance on my fingertip.

i managed to silently massage myself with my two fingers in my panties occasionally slipping a finger inside my wet hole. my hole was wet and that unfortunately causes sound. unlike some other people on this website...i don't think its disgusting it's just not my type of thing...i dont want my sibling hearing me finger myself.

its difficult to sleep because i can still feel my pussy begging for attention and my lower abdomen feels like its going to explode with cum.

any tips on how to finger my wet hole silently?