The increase in orgasm intensity achieved after prolonged abstinence is a well-documented phenomenon in the sexology literature—and it has several specific physiological explanations.
Accumulating effect of vasocongestion During prolonged arousal, blood supply to the genital area continuously increases (vasocongestion) — the longer this process continues, the more intense the release of the final muscular contractions becomes.
Hormonal build-up: Dopamine and oxytocin levels gradually increase during prolonged periods of arousal, rather than suddenly “spiking” during brief periods of stimulation.
Psychological component Anticipation itself intensifies the perception of the final sensation — the brain assesses the contrast (prolonged tension vs. sudden relief) and it is this contrast that is experienced as particularly intense.
Average statistics According to sexological studies, prolonged arousal (with pauses) for up to 15-20 minutes usually results in a noticeably more intense final orgasm than 2-3 minutes of direct stimulation.