Not By One Alone

Riddle: I cannot be possessed by one alone. Two may have me together, and a third might follow along. I go by many names, from the most beautiful to the most vile, but people often avoid speaking of me at all. What am I?

Answer: Sex.

Source: https://www.riddles.com/10991

I cannot be possessed by one alone. Two may have me together, and a third might follow along. I go by many names, from the most beautiful to the most vile, but people often avoid speaking of me at all. What am I? — Not by one alone by Peter Sutton v1.

Riddle: I cannot be possessed by one alone. Two may have me together, and a third might follow along. I go by many names, from the most beautiful to the most vile, but people often avoid speaking of me at all. What am I? Answer: Sex. — by Peter Sutton v2.