Well for those that say how much that'd be a damper for the love making, I'd have to say in certain situations it would be a nice and welcomed option.
For instance not all women can use birth control because the negative side effects on their body are to great, that leaves the only option for protection to be a condom and anyone who's had sex with and without a condom clearly knows (man or woman) that it feels much much better without.
This would allow for greater pleasure while still protecting against pregnancy for those that are in committed relationships (or not I guess)