(Preface: My cousin Lynne, two years older than my eighteen, introduced me to real sex. She lived with us for awhile before getting a job and finding her own apartment. I was crushed when she left, knowing how much I would miss her passion and knowledge of and curiosity about sex. Read Parts I, II, and III for background.)
I found it fairly easy to visit Lynne in her new apartment on weekends without my parents knowing. I would just say I was going out with friends and would be back fairly early, and I would jump in my old beat-up car and head downtown. For several weeks we had torrid sex every Friday and Saturday night. She always met me at her door wearing something sheer and sexy, and it wasn't long before we were sucking and fucking all over her apartment.
One Friday night she told me about a girl she met at work. Jo was a year younger than Lynne and they were both in the Customer Service Department answering phone calls. Their cubicles abutted, and when things were slow they talked. Soon they were having lunch together and sometimes a drink after work.
"She's really hot," Lynne said. "She loves sex and she's bi. Last week she invited me to her place and she seduced me. It wasn't hard, I was totally turned on by her. She made me cum so many times I was wrung out."
"Wow," I said, my jaw dropping. "I never figured you for lesbian stuff, cousin."
Lynne laughed. "I'm not a lesbian, silly, you know better. But I might be bi too, you know? I mean, this girl is amazing. By the way, she wants to meet you."
"Huh?" I said. "Me? Why?"
I told her about us and she'd like to... well, do a threesome with us. Interested?"