This was a wonderful moment for both, which was mixed with great pleasure. The merging of essences, better known as 'The Marriage of Essences', is something that merges spiritual energy, cultivation, spiritual weapon, and everything that involves cultivation with the other person in a splendid and highly pleasurable sexual act.
It is something that the vast majority of couples tend to do because by merging their essences, the dual cultivation becomes more pleasurable, and, in addition, they get a greater reward for each time. But it is complicated to do it, and not everyone dares to do it because it implies uniting almost all of oneself, something that not everyone would dare to do. After all, the pain suffered would be greater in case of betrayal. Even more so because either of the two can exercise the breaking of the technique, which would cause great damage.