Yes, it is very important for a couple to learn and understand what sexual activities both partners enjoy. Sexual compatibility and satisfaction are crucial factors in a healthy and fulfilling relationship. Here are some steps to help you explore and discover each other's sexual preferences:

1. Open and honest communication: Encourage open conversations about desires, boundaries, and fantasies. Create a safe space where both partners feel comfortable discussing their sexual interests without judgment.

2. Prioritize consent: It is essential to respect each other's boundaries and obtain mutual consent for any sexual activity. Consent ensures that both partners are comfortable and enthusiastic about participating in any given sexual act.

3. Explore together: Dedicate time to exploring different activities and experiences together. Experimentation can involve trying new positions, incorporating role play, introducing sex toys, or even exploring different locations or environments. Remember, exploration should always be consensual and comfortable for both partners.

4. Share fantasies and desires: Encourage each other to express their sexual fantasies and desires. This can help both partners understand what turns them on and create opportunities to fulfill these fantasies within the boundaries of your relationship.

5. Be open-minded: Approach these conversations and experiences with an open mind. It is essential to be understanding and respectful of each other's preferences, even if they may differ from your own.

6. Continual dialogue: Ongoing communication is key. Keep the conversation about your sexual preferences and activities flowing throughout your relationship as your desires may evolve and change over time. Regularly check in with each other to ensure both partners feel fulfilled and satisfied in the bedroom.

Remember, every relationship is unique, and what works for one couple may not work for another. The key is to foster open, honest, and non-judgmental communication so that both partners feel heard, understood, and mutually satisfied.