Longtime R&B crooner Brian McKnight is looking to prove that he's still got what it takes and that he can switch things up a bit. In showing us a different side, McKnight recently took to Twitter in asking his fans what they thought of him releasing an "adult mixtape." The result can be previewed above as the singer-songwriter reveals a track that he is working on for the project. The piece is titled "If You're Ready To Learn" and deals with molding and teaching your partner sexually. After receiving immediate backlash due to lyrics like "let me show you how your pussy works. Bet you didn't know that it could squirt," McKnight removed the video. But hey, this is 2012. Luckily, somebody threw it right back up. Stay tuned for more as this should be quite interesting.