It is not just strawberries, just about any fruit can be done this way. The trick is to use the ends of it. It is the ends or tips, that makes his brain think penis. That's what you want it to think in the areas of seduction.
Don't like fruit, even a sauce can be sensual. Let's use Alfredo sauce for an example, the white, creamy sauce is perfect for him to think of a sexual act. Dip your finger into it, swirl it just a bit, for a tease, then bring our finger up to you mouth. Open your mouth partially; again keep looking into his eyes, so you can see the heat building up in them. Then slowly close your mouth over the sauce covered finger, slowly suck on it, pretend it is his penis, give the illusion your sucking on that instead your finger. Pull your finger out, while you’re still sucking, to make that "pop” noise.
Food can be sensual, it is the timing and how you play with it is the key. Even Fraud said we have an oral fixation with sex. Food can help that oral fixation. So give in and play with your food, and that is he art of food.