The difference between them is that loveless pegging is the stuff that you'll experience when you're in prison. Wholesome pegging is only experienced when you're being pegged by someone you love and both sides have given consent. It also feels better when it's wholesome pegging.
@TrevorAllenMD it's honestly the weakest fusion monster, despite having 5000 atk most decks have cards that destroy monsters using effects. For example the blue eyes alternative white dragon's effect of destroying one monster on the field.