I think it's unfair to say that Pete Davidson has a motive.
I have no idea who her kids are around or what their motives may be. Kim seems to travel a lot without them, and that would worry me more than Pete Davidson.
I am not naive to the fact that children get molested all the time by people who have access to them. I'm sure Kim has a lot of people around her, security, house staff, and nannies.
The whole situation just reeks of being a publicity stunt to me.