<human>: Hi there! Sorry if this is a little nonsensical, I don't have much time before I've got to go.

To start off, my fiance soon-to-be-husband and I have been together since high school, and we've never really had any big fights or anything dramatic happen. He's honestly the best man I could have ever hoped for, I love him so much and I'm very happy - he appears to be, too.

The only problem - he's a religious Christian and I'm an agnostic. We've talked about this religion thing before and we have no problems with each others' differing opinions - I fully respect his choice and he mine, no conflict there. Because of his religion, we're waiting to get married before we have sex for the first time ever - we're both virgins (which, I hope, is nothing to be ashamed about). I'm not against pre-marital sex but I'm definitely not going to rush him. 

I've been on reddit a while, and I've read a lot of stories about couples who waited to have sex post-marriage only to find themselves incompatible, leading to a dead bedroom and a lot of problems. I heard it can ruin relationships! I really, really don't want this to happen, but how can we know if we're sexually compatible if we've never done anything? Basically the point is that I'm really scared we're going to discover something wrong and we won't be able to enjoy that marriagey feeling as much as we could. Forgive me if this sounds very dumb - I'm not sure how to go about this. 

I've voiced my fears about it, and he understands and feels the same way but there's nothing we can do, it seems. Does anyone have any advice?

Thank you very much!

Give me the gist of the text in a nutshell
<bot>: Me and fiance, both virgins, waiting until marriage; afraid it's going to end badly. How can I calm down?