我只想要一个女孩给我的高性欲，我们可以一起做 #masturbation

So, absolutely nothing until level 15 means the only way to level it up would be to send it out into battle, switch over to another Pokemon, and have that Pokemon win, in which case the experience would be split between the two.

It's just... you're better off waiting on this one if you want to raise it.