Good son: slowly rub her pussy with one finger
From Create Your Own Story
You take away all but one of your fingers from her ass and slowly begin to trace down getting closer to her pussy. Since Siri is lying on her stomach you only get access to the lower part of her cunt. You already thought this when you were touching her butt, but now you are 100% sure that your sister isn't wearing any underwear underneath her shorts.
You slowly and softly start to rub the lower half of her cute little pussy. The warm and soft feeling on the tip of your finger is fantastic. Siri still doesn´t say anything and still seems to be focused on her show.
Getting away with everything so far you start to get more daring. Two of your fingers now feel up your sister. After keeping up what you are doing for about 3 more minutes you can feel your sister getting wet through her shorts. It doesn´t even take 30 more seconds for the part of her shorts where her pussy is to get completely wet from her juices.
You take away the two fingers from her to sniff and lick them. The scent and taste is so sweet. Knowing you are tasting your sister is starting to give you a hard on.
You move your fingers back down to your sisters private parts. To your surprise you now have access to all of her vagina. She must have stuck her ass out a little as you were pulling your fingers away for a second. Siri still seems to be focused on the tv, but she must know you are fingering her through her spandex shorts. And she probably even likes it.
You start rubbing her once again. You can feel her clitoris through the shorts. Taking your second hand you slightly poke inside her vaginal opening through her shorts with one finger while rubbing her clitoris with your other hand. You can hear your sister's breath getting heavier. You go a little bit harder and faster on her.
All of a sudden Siri's body starts to shake and her pussy is closing around your finger while a slight moan escapes her lips. Her little ass she was pointing up now falls back down on the couch. You quickly pull your hands back. She just lies there for 10 seconds before she stands up and leaves the room without looking at you even once.
You silently go to the door and look where she went. You can still see her closing and locking the bathroom door.
You keep watching tv for a while longer until it´s evening.
