I knew it was her from the key in the front door. I was lying on my side facing Dave. We were both nude, his dickie lying soft on him. Soft? Yes. We h...ad seen to it that he had emptied it twice since he came home.Brindy came through the house and found us naked in bed together. That is not a bad thing among us. We, the three of us, are completely open about our nudity and sexuality around each other.Our evening wear for watching TV is Dave in his loose-fitting pajamas and Brindy and I each in. What was going on? Was she trying to walk this back? So much was going through my mind while at this point I had my dick in my hand. Looking back and forth to check if any one was coming while stroking my cock I looked over at my boss lady and she spread her legs. She had cut the sipper out of her pants and sown velcro on her pants for easy and quick access. Her pussy was so wet and juicy my boy bolo jump on her like a bear(He is a big dude) and put his cock in her. She wrapped her legs around. I saw them at different angles by asking her to turn left and right. Now with my left hand I started unbuttoning her blouse thereafter, I lifted her bra holding that from her cleavage portion. Tits are now exposed in front of my eyes; I washed my hand as my breakfast was over, came to my chair and held her both tits tenderly.I realised that immediately it became hard and nipples got erected. I kept on moving my fingers over there, she closed her eyes and I felt that she was enjoying my act. I. They all said it was terrible, because it was gross. Plus they said that the brother and sister would end up ruining their relationship and hating each other!”Okay, that just sounded stupid to me. “I'm pretty sure I could fuck you a million and one times and still care about you as my sister. And as for the rest, is that how it felt to you when we were together? Did it feel gross?”“No...” she said quietly.That's right! She started all of this, she can't have an attack of conscience and back out.