The relationship between Mike and Marti seemed to be developing quickly. I had no problem with them being together. Marti was two years older, supporting herself, and a young lady who wasn't into abusing alcohol or a drug user, hell, what's not to like?
The evening of mutual masturbation and exhibitionism had gone wonderfully. No one appeared inhibited, and I perceived to be enjoyed by all three of us.
The next weekend Marti and I were sitting on the deck enjoying wine coolers before she and Mike were going out. I brought up our little party and asked her if she was OK with what had happened.
"Oh, Gawd, I loved it," she told me. 'Seeing you so relaxed and participating made it great," she replied with a smile.
"I had a great time, and seeing you were accepting me and playing in unison with you and Mike got me hot," I said. "You reminded me of myself at your age."
Laughing, Marti asked, "So you weren't a goody-two-shoes"?
Placing my hand on her knee, I told her, "I lost it at 17 and never looked back". There wasn't much to do in my little hometown but enjoy sex.
"I bet with your body and looks, you didn't have to look for dates," she said.
Marti told me she lost her virginity at 18 to a guy who she was sure she was going to marry. He had money to throw around and show her a good time but was cheating on her regularly. When she found out, she broke it off immediately.
Mike came out and reminded her if they were going out, they needed to get going.
I didn't know if Marti knew about my sex with Kent, but I was sure she would find out eventually.
Around eight, showered and put on a short terry cloth robe before I went down to fix a sandwich and get a Coke and Bourbon. A second strong drink had me very relaxed when Marti and Mike came in.
Seeing my condition, Marti said, "I think she started without us."
"I can't let you two have all the fun. I'll go up and let you two have the den". I told them. I kissed both on the cheek and got out of the way.
Laying on my bed, nude, I thought about what had transpired previously. As I ran over the event in my mind, I reached down to my pussy and found it wet. I began to play my clit with my forefinger. Recalling Marti playing with herself, I thought of her beautiful body and watching her breasts as they danced as she masturbated.
I began to use my other hand to massage my boobs and started to move in a swaying movement to cause them to move over my chest. Looking down and seeing my nipples hard, I raised one to my lips and sucked, softly at first and then taking it in my teeth.
I was imagining someone doing it to me, instead of myself.
I orgasmed within minutes. I finally went in to take a shower.
I went down to get a glass of ice water. Wearing the same terry cloth robe, but untied, I walked into the kitchen. A wall away, I could hear Mike and Marti having sex. The action as noisy, adding in the verbal comments of Marti, telling him to use her more vigorously, oh, we were so much alike.
I heard Marti announcing her pending climax, which caused me to move closer to the den.
She was on her knees on the edge of the couch, legs spread, and taking Mike's cock.
I remained a minute too long observing them, realizing they had heard me come down.
Mike backed away from Marti, still quite hard, and sat on one of the recliners.
"Come on in Mom," he told me. Shit! I felt like a peeping Tom.
Marti was off the couch, her hand between her legs in an attempt to catch the draining sperm. She looked at me wickedly and walked to the downstairs bathroom.
I sat on the couch, facing Mike. "Sorry, honey, I couldn't resist," I told him, smiling.
He began to stroke his rod, shiny with their juices, as he answered. "No problem. It ain't like you haven't seen it before". He continued to jerk off.
I watched him and opened my robe. I spread my legs and opened my labia to find my labia lips. I love to pull them as foreplay before moving on to my clit. I watched his cock just feet away.
Marti had reentered without me knowing. I don't know how long she had watched me playing with myself as I looked at Mike.
She stepped around the corner and into view. "Not fair," she announced. "Looks like Mom is enjoying herself without me."
She walked over and knelt in front of Mike. She removed his hand and lowered her mouth to his penis. I could see her taking more and more of him as she ran her lips up and down his shaft.
She was on her knees, her butt in front of me, and I could see her 'sex,' still red from their intercourse. I don't know what came over me, but in seconds I was on my knees behind her. I licked my finger and ran it over her slit. Looking at her to see a response, she simply continued to pleasure Mike. With my other hand, I ran my fingers over her ass.
I noticed she had opened her legs slightly. Accepting her invitation, I moved my fingernail to her opening. Waiting again for her reaction, I was pleased to see her push back against my hand.
She was sucking Mike's cock with a steady movement.
I moved my finger into her. She was still wet. Removing my left hand, I raised it to her left breast. I cupped it and flicked my thumb over her nipple. They were hard.
Marti moaned at my touch.
I moved my finger deeper into her wetness. Her response was to push back against my hand.
She worked on Mike with more intend to cause his orgasm. He soon shot his load into her mouth and throat.
I watched as she cleaned him with her lips. I still had my finger, actually two, in her pussy. She raised, causing me to stop and withdraw my fingers