>>45709570Vaporeon are an average of 3"03' tall and 63.9 pounds. this means they're large enough to be able to handle human dicks, and with their impressive Base Stats for HP and access to Acid Armor, you can be rough with one.
Due to their mostly water based biology, there's no doubt in my mind that an aroused Vaporeon would be incredibly wet, so wet that you could easily have sex with one for hours without getting sore.