My wife's little sister died 3 months ago and her 6yr old is living with us. She is a pretty little thing dark complected with raven black hair down to her pretty little butt beautiful big brown eyes . I'm getting hard just thinking about her. She is with my wife most of the time. She took a leave of absence to be with Abby. Last week I was trying to get in the bathroom to brush my teeth but everytime I tried my wife who I will call pam came to the door with some kind of excuse she is going pee, she is trying on her new clothes, she is taking a bath. I gave up and I told her to hand my toothbrush out the door and I will brush my teeth in the kitchen.30 minutes later they were still in the bathroom. I quietly walk to the door and listened to hear what she was doing. I heard a low not a squeal but a moan then another one and pam whisper shuu . She asked do you want me to stop. No I heard Abby say in her tiny voice. I tried to get a peek but couldn't see anything. I went back to the living room and turned on the TV. After 10 minutes she finally opened the door. Pam's lips looked a little red and a funny look on her face. Abby looked a little flush with a few bead's of sweat on her face. Later that day I was watching a movie and pam and Abby was giggling on the couch. I pretended to fall asleep.in my recliner. Pam kept looking over at me looking suspicious. That's when I saw what was going on. Pam slipped her hand Abby's dress and I almost fell out of my chair. She pulled Abby's dress up and her finger was nuckel deep in her little pussy. Abby opened up her legs wide giving pam a clear shot at her pussy. She pulled her finger out and stuck it in her mouth and sucked on her juice's off and went down and drove her tongue deep in Abby's bold little pussy. My dick was so hard it hurt. I would be jacking off watching but I didn't want to take the chance of your stopping. Abby moaned and pushing her hips up to Pam's mouth. After a couple of minutes Abby started trembling and squirmed a little and I heard pam say mmmmmm and Abby relaxed and Pam slipped off her short's and panties and laid back and Abby laid down next to her. Pam guided Abby's hand to her pussy and guided her how to rub her pussy. I was so turned on and without touching it my dick exploded in my shorts. I could feel my cum flowing to my ass. I had to move a little. Pam hurrying to slip her shorts back on left her panties on the floor. She whispered to Abby follow me and went to our room. They were in the bedroom for 20 minutes and they walked back in the living room. After they moved I grabbed Pam's panties and cleaned up the cum off my dick which was a lot of cum. Her panties were drenched and I put them back in the floor. I saw pam reach down and grabbed her panties and felt them and looked at me with a oh shit look on her face. that night pam said you know what I did don't you. At first I pretended to be mad as she was trying to explain it to me. She asked me do you hate me. I couldn't keep it up and I said fuck no but when do I get to join. Tonight I will let her sleep with us and you be naked. I took a shower and jumped in bed. S half hour later pam brought Abby in and put her between us. I gave her about five minutes before I made my move. I put some lube on my hand and started rubbing Abby's ass and pussy very slowly. I heard a slight moan as I had my thumb on her clit and was rubbing then I used a finger to pinch her clit. When I did that she turned on her back her legs flew open. I slid down and started eating her pussy and working back to her asshole back to her pussy and she started shacking and grabbed the back of my head and held my mouth to her pussy. I looked at pam and she was watching with a huge dildo sinking deep in her pussy. I pulled Abby over to the edge of the bed and opened her legs and guided my throbbing dick to her little hole and surprised my dick slipped in fairly easy she was not a virgin for sure. So with a hard push I drove my dick in her pussy about 3inch and with another push I was in balls deep. It felt so good like a tight glove around my dick. I started fucking her slowly and slowly moving faster than I was fucking her little pussy hard while she was screaming out fuck my pussy harder pam was driving that huge dildo all 12" in her pussy and suddenly pam stood over me and Abby and exploded a huge blast of cum all over us. I felt the cum building and I exploded deep in Abby's pussy filling her full of my hot sticky cum. Pam couldn't control her self she jumped down and ad I pulled my dick out she grabbed it and started sucking her niece's cum off my dick then jumped over and drove her tongue deep in Abby's pussy eating all my cum out of her pussy and we have been fucking every since.