Yes, there is a difference between consensual and non-consensual pegging relationships. In a consensual relationship, both parties have agreed to engage in the activity, are aware of the risks involved, and can stop the activity at any time. On the other hand, in a non-consensual situation one partner may be compelled to participate against their will or without having sufficient information about what they're getting into. This form of sexual coercion often leads to emotional trauma for the victim.