My wife was/is definitively bisexual. She has had many encounters with other women, some random and sometimes with her good friends. Here is one of her hot past stories she told to me once while we were getting hot and heavy.
My wife and her friends were big into partying in college and were very open with each other about their hookups. They had watched each other have sex with guys before in dark rooms after parties and were beyond comfortable being naked around each other. One night, my wife and two of her friends had gone back to my wife’s apartment after a night out. They all passed out in bed together, in various stages of undress, completely hammered. My wife woke up still feeling pretty drunk with the sun just coming up and she was in between her two friends.
Her one friend has huge round tits and a big ass, a thick girl but the just the right proportions. Her other friend has small, slightly droopy tits and is pretty thin with a flat ass. My wife’s body is pretty much inbetween when compared to her friends. C cup tits with huge nipples and a nice round ass.