Humour can be a great route to engagement, but I thought we all knew from personal experience that if the joke has to be explained to you, then the impact is greatly diminished. It's either a bad joke or it's been badly told. Or both.
The parentheses above left me dumbfounded. Not only did it bring to mind memories of excrutiatingly unfunny speakers/party bores, it also managed to be sleazy rather than risque. If you're that unconfident about getting your idea across, tinkering at the edges will simply make things worse. Far better to go back to the drawing-board and craft it properly. If you have to explain it, rewrite it.