This orbital is not SP two hybridized. This is a pure two p orbital. And that's exactly why this guy will act as a lewis acid. So if you take this molecule or atom and combine it with this molecule, this lewis base will tend to donate this pair of electrons to this orbital forming back our methane molecule. So now let's look at the methylamion. Now, we have a similar picture, but we have a pair of electrons within this two p orbital.