1. Prepare the Glass:

Fill a large glass with ice cubes.
2. Mix the Drink:

In a cocktail shaker, combine the Hennessy Cognac, pineapple juice, lemonade, and simple syrup (if using).
Shake well until thoroughly mixed and chilled.
3. Serve:

Pour the mixture into the prepared glass over the ice cubes.
Garnish with pineapple slices and lemon slices.
4. Enjoy:

Serve immediately and enjoy the sweet, tangy, and tropical flavors of the Pineapple Hennessy Lemonade!