No matter what you say, two feminist holes will always be better than just one. As well as if the pleasure is greater for Him, then it is greater for them too.
TIL that, due to the structural nature of oils and fats, wild salmon raised in cold waters (like the Atlantic ocean) is better for you than farm-raised salmon.
Honestly, who cares if they have been together for 5 years? Prove you're better than his girlfriend, and then conquer his load. That belongs to you now.