Absolutely! Most of the couples I work with feel this way. Trust me, even the ones that look super natural in my portfolio told me they were going to be awkward.
My job is to create a vibe that makes you feel relaxed and able to be yourselves. The first 5 minutes might feel weird, but then it will actually be fun most people tell me afterwards. It’s a small adventure together. Don’t worry about modelling or being something you are not. Just be you and show your love the way you normally would and you’ll be great.