Many years ago, we had a long term MFF relationship with a neighbour, who was a virgin, and intended on staying one until she married. She became very bisexual, and had a relationship with Carol that spanned a number of years (until we moved away). She was extremely sexual, and we had great threesomes. She even loved to swallow!
Her virginity was a topic of discussion, but she couldn't even fully explain it. She wanted to save that first penetration as her "gift" to her husband. We respected her for it, and she held true to herself. She did get married, and that wedding night must have been insane
As to single guys who say they are still Virgins....I'll let you into a little secret, most aren't! There is a myth amongst single men where they think "Swingers" are all into virgins, and that their chances of getting laid are higher of they say they are virgins. I do know of a few guys that have been successful with that ploy. I have come across this discussion on a few different boards, where guys were talking about how to hook up with Swingers. Invariably, someone would mention the "pretend to be a virgin" game.
Personally, we won't entertain "virgins". We prefer our partners with a bit of experience
Danny & Carol