deformas la boca

20:00 May 22, 2023 

Kind of you, but I don't think I can post twice?

17:57 May 22, 2023 

I think your 'contort' is good and should be posted!

12:27 May 22, 2023 

I believe the point here is that unless you want to/were asked to edit a text, you need to stick to the original.
In this case, the writer chose to use a certain word which is not ambiguous, despite not being the usual one associated with the action described. He/she could have said ¨pout/twist/grimace/contort¨ and did not.

Moreover, such word used has a perfect equivalent in English. The RAE defines ¨deformar¨ as ¨Hacer que algo pierda su forma regular o natural¨ while Cambridge dictionary defines ¨distort¨as ¨to change the shape of something so that it looks strange or unnatural¨.

By the way pouting/puckering is not what you do when applying liptstick.

12:03 May 22, 2023 

contort comes up as a synonym of deform, encapsulating distort, twist out of shape,... https://www.dictionary.com/browse/contort. It may flow better than distort, with the same meaning?

11:57 May 22, 2023 

I think part of the problem is we're all imagining the shape the lips are taking to apply the lipstick, pout, twist, scrunch, pucker, etc. In the end I'm not sure it says that and that maybe something along the line of distort is most accurate to the original. Except that it is more like "distort the shape of your mouth" which is too wordy. With twist, for example, I thought it might be twist to one side, but it doesn't specify that either. Even twist out of shape is probably more specific than deformas.