You're doing well with the bonding pouch part. I know it's tough...I'm an 8-5er with two teenage sons (and a husband that might as well be a teenager).
The next stage to the actual play time is for you to find a tent, or glider proof a room, such as a bathroom, so that you can have them out at night when they are really active and ready to play. This doesn't mean they'll immediately play with you...they often like to check things out and burn a lot of energy but, with treats and patience, they'll come around in their own timing. The glider safe room should be cleared of any personal care products and residues, toilet lid down, drains closed, and a thorough search for any tiny crevice that they could squeeze through and hide or escape...anything over a half inch should be sealed off. Also, keeping this room as dark as possible helps. A dim nightlight, cell phone glow, laptop glow or a red light bulb are several things people use to help be able to see them without bothering them to where they want to stay in their pouch or inactive.
I would suggest...(just in my mommy experience) that you begin this process without your son in the room or tent area...maybe after bedtime. Once you've got a good bond it will be easier for you to carefully work with him on how to be around them without potential minor catastrophes such as a hard bite sending things into a bit of chaos.