You might want to think about what is "OK" once you are married.
I know they right about it a lot but they like to refer to an 1985 WT artical about proper sex withion marrage. It's a long study artical but it boiles down to -1.) If you can pay a prostitute to do it you can't do it. 2.)If homosexuals do it you can't do it. and 3.) Even if you can do it your time would be better spent knocking on doors. And yes they do police your bedroom.
Please think about this and read a lot of the posts here and really think about weather you want to be a witness.
Lots of love