She turns and leaves the room

She turns and leaves the room almost instantly. Even with the shock and embarrassment of having my sister-in-law walk in on me while masturbating, I can't stop the cum from building in my balls. The cum travels up the length of my shaft and all I can think about is the fact that my wife's younger sister was just saw me masturbating. My shaft jerks as the first stream of cum shoots out of my cock. I imagine shooting my load into Samantha's wide-eyed face as she gasps as cum lands across her mouth. I can't help but grunt and close my eyes as the orgasm washes me.

After the moment passes I open my eyes. I don't know what to make of this incident, I may be in trouble, I will be in trouble if she talks to her sister.