I notice you've asked for an essay on a phrase that isn't clear to me: — this doesn't correspond to any known title, concept, or common expression I can identify.
Thus, "Believe me, I wanna DP 3" becomes a request to modders: "Trust me when I say I genuinely want the third version of the double penetration animation mod."
Ultimately, the eagerness for a third installment is a celebration of storytelling. It proves that despite the saturation of content, audiences still crave deep connections with specific stories. Whether the motivation is seeing a favorite duo team up or simply enjoying a few hours of escapism, the desire for "DP 3" is a modern expression of the age-old human love for the "Rule of Three" in narrative—the beginning, the middle, and the highly anticipated end.