Open or Closed?

In which everyone's in uni, Irene's having a party, and they decide to play a game of truth or dare.

"Have you fancied anyone, and, if so, how many people?"
"Yes," Sherlock replied. "Two."
"Must've been smart girls, then, to get you interested," John said bitterly.
"I- Um, I don't-"
Irene laughed. "Oh, please. Sherlock's afraid of vaginas."
"Well, that's a stunning way to come out if I've ever heard one," Sherlock muttered. "And there you have it, gentlemen. You are in the presence of a raging homosexual."
"Two!" Irene put in. "Count me as a raging homosexual too."
Sherlock chuckled. "Yes, two raging homosexuals."
"Oh, are we using adjectives now?" Greg asked excitedly. "I'd say I'm a zesty bisexual. Or maybe... maybe amiable. Either way."