Even if you are curious, a man should be satisfied having 1 person in his life.
I never heard of it I had a girlfriend when I was 16 who told me she did everything but penetration with her first male cousin a few times and my current girlfriend told me before we ever had sex that she had a lesbian experience with her second girl cousin when she was 12 and made out and fingered a few of her very close friends those in this case I would not include it in your scenario as such I guess.
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