After is came in her mouth, she snowballed it to her boyfriend. As I was leaving, I asked her to send me a real email address for the next time I came...to town. And she did. Little did we know it would take 3+ years to make it back to town. Earlier this week, I sent a note a simple note: Subject: Hello Again! I was in town a few years ago. Came to your home. You gave me a blowjob and shared it with your BF. I'll be in town Thursday night. Wondering if you're still into playing? And looking for. She then grabbed at his cock and I could see he was very hard. He then challenged her to do the same to me while watching him. She did... he could only respond with an "ohhhhh" sound. I almost began to plea to them that I would love as per my fantasy to be together in a threesome. She looked at me and he at me... I gave a most convincing glance to them. I even opted to start. Sitting on this super soft brown sofa I began kissing her lips and neck while my hands ran down her chest slightly. My furious masturbation was also making a thump thump noise that could be heard around the empty library. There was something kinky about masturbating in a public place while watching a girl’s face be impaled. That was enough to put me on edge.I was about to cum when I heard a yelp. Startled, I opened my eyes. I was shocked to see my best friend Sheena looking into the conference room with her hand on her mouth! I scrambled to my feet and in a hurry pulled my pants back on. I looked at Sheena. Her slit was so wet. She pulled her hood back and told me to lick it. "Open my pussy lips" she said softly. "Now lick up and down my pussy, Yeah like that, OH YEAH!". She put her head back and just moaned. Sucking on her bottom lip as I lick. I was licking my mothers pussy and she was liking it. I licked it for alittle while like that until she said "This is my clit and is one way a woman has an orgasm. Now, on the inside is a G-Spot, another way for a woman to have an orgasm".She tells me to.