You are right to be worried about transport. It's not safe for a human to carry a cat like this. What if you just wriggled out of her arms and ran away.You might have got lost in the traffic, or even run over. She needs to get a secure cat carrier.
Honeymoons? Humans really are odd. Their mating habits are varied, ranging from pair bonding to one night stands (so called though this could only be literally achieved by medication!). As a species we do it better. Our female queens come on heat, go out in search of toms, mate furiously with several and have kittens a few weeks later usually from multiple fathers. That way we get the best chance of healthy kittens. If one of the toms isn't up to scratch (so to speak) and sires a weak kitten, there is always others in the litter that are strong.
Honeymoons? Part of the pair bonding ritual, once associated with the chance to have sex; nowadays just a nice holiday after an expensive ritual wedding. Don't go on the honeymoon. Heaving mattresses are no fun for cats that need a decent night's sleep.
PS. This blog is late due to the unforgivable absence of my secretary for most of the week.