Love it. It's on our regular menu and often turns into a combination blowjob. But there was a time when it was a turnoff for my wife. It was like a body-image issue over being the girl with big boobs that had been drawing unwanted attention for years. I'm not sure what brought her around. I think I just got her to realize that it's nothing complicated or objectifying for me-- I love her, love her breasts, and sliding between them feels beyond pleasurable (not to mention the porn-like visual of interlocking oversize parts). The sensation may not do much for her but she enjoys the power-- if she wants to finish me in a hurry, all she has to do is the titfuck/blowjob thing.