Grabbing her hips, I asked her to straddle over my face, so I could taste her and gently licked her. Since she was sitting away from me, I could feel ...one of her fingers inside me, sliding back and forth, as I used my tongue in her. She tasted so nice and was pretty wet. I concentrated on her clit and flicked my warm tongue side to side, before inserting one finger deep inside her. She moaned as I pushed it higher inside her and licked with my tongue at the same time. I could feel her hips. My actions just seemed to flow.While still jerking my cock, I pulled back my other hand back, slid my finger over her tight bum hole and pushed it into her anus. Still damp from her orgasm, and my finger wet from her cunt, it slid in easily. I did wonder whether the feeling would wake her, but there was no movement. One finger was replaced with two, slowly pushing deeper, allowing my knuckle to stretch the sphincter muscles, curling my fingers to explore her insides.Feelings were racing. When we reached Martha's room, I said, "Your parents seem to get it on." Oh, yes," she replied. "They both enjoy sex. Mom would like to try you out." Which hole?" Any. If you go down there right now, she will suck your balls through your cock." I think I will stay here." I dropped my pants and kicked off my boots. Martha took one look at my hard cock and lifted her skirt high. She got on the bed on her hands and knees. I took one look at her holes and pushed my cock into her ass. She had the. Before I knew what was happening I was blind folded and she was preparing the restraints for my wrists, my hand secured behind my head.She was wrapping something around my chest, it was soft and frilly but it took me a moment to realize it was her bra that she was putting on me.My bulging cock poking out of my pants, she kissed and bit my inner thighs as she removes them.I could smell the her pussy was wet and excited, the felt warmth of body on me as she changed positions and now rubbing her.