I'd love to have a bisexual threesome

I have a girlfriend who is a bisexual. I know she always want to ask me whether would I like to have a bisexual threesome dating with another man. By the way, I'm lesbian. Actually, I'd love to have a threesome dating. Why? Although I'm a lesbian, I am open to sex. I would love to try something different sexual experience. You know life is short, you should take every chance to have a wonderful threesome dating If you can. Have a bisexual can make my girl happy and I can experience something new. I'd love to.