>>29157810Excuse me, but the daycare man says he found an egg and that he doesn't know where it came from. If an old man doesn't know where an egg comes from when he's watching your pokemon play all day, eggs can't come from sex.
Besides if they had sex, mammals and some fish give live birth, and most animals have extended periods of pregnancy, much longer than it takes for an egg to appear. Eggs come from Celebi.
Also Mew is the only pokemon to have sex. Cinnabar Journals confirm that.