Hi there
Yes, you can connect any number of sites to the same WordPress.com account, you just need to log into the desired account on WordPress.com and then on each site, go through the steps to disconnect Jetpack (if connected), and then reconnect it to the desired WordPress.com account.
1. Go to the **Jetpack** menu in your WP-Admin dashboard
2. Scroll down to find the *Connections* area.
3. Click *Manage site connection*.
4. Click **Disconnect** and follow the prompts to complete the disconnection process.
5. Click **Set Up Jetpack** button to connect your site to WordPress.com again.
This handy guide explains the full process in more detail:
[https://jetpack.com/support/reconnecting-reinstalling-jetpack/#disconnecting-jetpack](https://jetpack.com/support/reconnecting-reinstalling-jetpack/#disconnecting-jetpack)
Let us know if you have any trouble with that.