In Fusion Reborn, Gogeta is not seen as cocky whatsoever when compared to his Super Saiyan 4 form, and eliminates his enemy quickly. As a Super Saiyan 4 however, he acts somewhat similarly to his Potara counterpart Vegito as they both toy around with their respective opponent in order to achieve their true goal.
He is also the only fusion to be dead, as both Goku and Vegeta were deceased when they fused and fought Janemba.
Gogeta is the only Fused Saiyan character (Potara or Fusion Dance) to successfully defeat a villain without the fusion wearing off (he defeats Janemba without even coming close to running out of time).
1: when a males sticks his reproductive member to another males rprocductive memvber, causing the second males reproductive member to be forced inward. this creates a hole quiet like the vaginal opening of a female, alowing the first male to perform acts of sexual intercourse on the other male.
2:when a male sticks his reproductive unit into a females vaginal opening but accidentally, or purposly probes the urinary tract of the female. the acidity of the females urine will give the males reproductive unit a sensational burn that can be quiet pleasing(note: too much acidic urine will eat away at the males reporductive unit)
however, the gogeta cannot be performed by two females in any way shape or form, it is simple physics.