I answered: Other, Hetero, and Female.
The reason I answered 'other' is because I didn't not enjoy the threesome experience but I have a serious, emotionally damaging hatred for one of the people involved at the time. It was something more of a triad with a lot of backstabbing, lies, lies and more lies on all of our parts but the largest betrayal came from her side of the camp. (She told me she wasn't a virgin and when the guy involved revealed that she was VERY much a virgin, I was SHATTERED. I had fallen head over heels for him and I wasn't a virgin when we met. I felt deep shame and many other emotions and thought I'd never be good enough. I was also sixteen at the time.)
I think it's something everyone should do (with both sexes) at least twice in their lifetime, but I don't think it's something I'm interested in doing again. I will have sex with both men and women, but my romantic preference is 100% male and I prefer one on one contact.
After a very long stint of only having sex with each other, my husband and I invited a man over to our home, where they proceeded to perform oral sex on each other. It was a less than perfect experience (the guy had taken a couple of xanax and had what pretty much equated to coke dick and couldn't get hard). It was hot to see and we may do it again in the future, but we're not beating down Craigslist to make it happen.
I'll go down on a woman while he watches and he'll go down on a guy while I watch, but I don't think he's interested in having sex with that woman and I know I'm not interested in having sex with that man.