Pros:
1. They will entertain each other in ways that humans just can't. It will take a burden away from you to be their sole playmate.
2. Honestly, many of the most memorable and entertaining moments with cats are the cat to cat sorts of behaviors.
3. If you think you'd like to have two cats at some point (which is what you've expressed), then getting two kittens NOW (more or less together) is likely to give them a much easier transition and acceptance of one another.
Cons:
1. Nearly double your costs (don't forget that the first year of cat ownership can often be one of the more costly ones). You're also doubling your odds of having a cat with serious health problems.
2. Many people feel that having two cats that become "best friends" come at the cost of their relationship with you to some extent
3. You are going to have head to toe scratches on your body for 6 months
4. After the first 12 months or so, there's going to be a much greater need for excellent catification. That's when cats (esp bengals) start to become more territorial
5. You always run the risk that your two cats will just be incompatible. Either from the start, or after they become adults.
6. Finding food that they both like, or managing two different sets of food is more hassle.
Overall I highly recommend doing it! But you just have to work on managing the "cons". The "My Cat From Hell" tv series is really helpful, as is the book "Cat vs Cat" for helping to understanding cat-to-cat dynamics and working through some of the challenges.