The Bachelor Nick Viall just dropped a sex bombshell!

The reality star was on Watch What Happens Live when host Andy Cohen asked him to play a round of "Never Have I Ever."

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Holding a flashlight to his "guilty face," the 36-year-old revealed he has gotten a boner while on a group date, he's never had sex in in the ocean, and, wait for it, he HAS slept with a Bachelor contestant outside of his seasons!

While fans of the reality dating competition know Nick hooked up with Andi Dorfman, who has criticized his skills in the bedroom, Kaitlyn Bristowe_, and **Jen Saviano, many did not realize his black book also contains the names of other contestants.

Nick, being the gentleman he is, did not share the name of those contestants. However, he has always been open about his sex life.

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"I’m an open book so I don’t mind the fact that it’s out there," he told People magazine. "People are well aware of the fact that Andi and I slept together, as well Kaitlyn and I, but I slept with two women that at the time I felt deeply for and thought there was a good chance I could end up with.”

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Nick with Andi filming Season 10 of The Bachelorette.

He continued, "By a lot of people’s opinions, I’m slutty or a man whore simply because of those two things. It’s a little silly. I’m no saint, but that’s not who I am.”

So with fantasy suites coming up on his season, what can viewers expect?

"I haven’t really thought specifically about it,” Nick said. “But I’m not going to be afraid to have some honest and candid conversations with the women.”

SPOILER ALERT! To find out Nick's final four, click through the gallery below!