If you want a threesome, that's cool

After my first threesome dating with my boyfriend, he wanted more. The girl we slept with was a friend of his, and for a while afterwards, whenever we were near her, he would bring up another girl. I told the two of them that I was not used to it, and once it happened, it was really interesting, and that's what I wanted. If you don't want to, you don't have to play threesomes anymore!