Two of Three

From Memory Alpha, the free Star Trek reference

Two of Three was a hologram, an altered version of Three of Eight, who was in turn based on Seven of Nine. Three of Eight was a character in a holonovel written by the Doctor, later altered by Tom Paris, entitled Photons Be Free. Two of Three, along with her sisters One of Three and Three of Three, are triplets.

In the version of Photons be Free altered by Tom Paris, the EMH character attempted to seduce her, giving her a Klingon aphrodisiac and massaging her neck. (VOY: "Author, Author")