What is the error here? The pose looks a bit awkward but I can't see a particular error.

pants on while insertion?

That doesn't look like insertion to me.

Yeah, that's not insertion. He's cumming over her panties and on her inner thighs. I'll remove error until someone can actually explain what the error is.

the tip of the penis looks like its inside her or something.

jkim said:
the tip of the penis looks like its inside her or something.

Some thing to this effect.

jkim said:
the tip of the penis looks like its inside her or something.

The head of the penis can squish out so it would look like that