I hope you take the question seriously enough to keep pushing beyond the easy observation the the JWs have no frickin' idea what they are talking about. It is also worthwhile to begin with the orthodox Christian teaching; that way, if you decide to reject it, you will at least know that you are rejecting the ancient teaching of the Church and not merely the results of some recent fan fiction.
There are two places to start. First, begin with the actual Christian teaching, which has always been a very direct insistance that Jesus was raised bodily. This claim was strongly criticized by most of the Greek world, who rejected the concept (both Christian and Jewish, as it happens) since they figured that escaping the body was more likely the goal of living a good life. Indeed, that's why there are all those stories of the raised Jesus having a body that still was wounded and why he did stuff like eat breakfast. If you buy those stories, it is perverse to suppose he was missing some parts.
We do have recorded his claim that in the new world, we wouldn't have marriage. Nobody said anything about getting laid, so you shold feel free to speculate until your heart is content. I would hold off on St. Paul's writing about the question for a while: it is notoriously difficult and lends itself to being painted with anachronistic and personal biases.
Anyway, in the Resurrection, you keep your junk.