My brother is recovering from an injury at home, and his beautiful girlfriend (how envious) comes to visit him. She's about to get her period, so she wants to jerk him off, but he's still in the mood because of his injury. Still not satisfied, she presses her throbbing pussy against my brother's face, asking him to lick it, and starts stroking it. I was peeking in, and I couldn't help but get hard as a rock, but my brother's girlfriend found me...