Meaning of ギャップ in the following sentence


Context: a couple is checking out the otters while visiting an aquarium.

> Boy: 苗代【なえしろ】はカワウソが好きなの？
>
> Girl: うん！動物で一番好き。食べる時とか時々ブサイクになる **ギャップ** がたまんないの。

What is the meaning of ギャップ in this sentence? Since she says "食べる時", I think
maybe she is referring to the "gap" of an otter's slightly open mouth, but I
am not sure. [Here](https://i.stack.imgur.com/Scpr5.jpg) you can see the whole
page. Thank you for your help!




It's from English "gap". She is referring to the large difference of an
otter's face between when it's not eating and when it's eating. I guess she
regards the former face as "handsome/cool" and the latter face as "relaxed and
cute, although goofy in a sense". ブサイク is normally a negative word, but it's
not always negative at least to some young girls...

Related:

  * [KIMOKAWAII: BOTH CUTE and GROSS AT THE SAME TIME](https://www.tofugu.com/japan/kimokawaii/)
  * [What is gap moe?](https://anime.stackexchange.com/q/28922/5094)
  * [ブサカワ](https://www.weblio.jp/content/%E3%83%96%E3%82%B5%E3%82%AB%E3%83%AF) (ブサイク + かわいい) 

>
> 不細工だが可愛いと感じられる顔立ちや表情を形容する表現。(snip)たとえば犬種のパグなどはブサカワであり、ブサカワであることがむしろ愛好されている種といえる。




It's from English "gap". She is referring to the large difference of an
otter's face between when it's not eating and when it's eating. I guess she
regards the former face as "handsome/cool" and the latter face as "relaxed and
cute, although goofy in a sense". ブサイク is normally a negative word, but it's
not always negative at least to some young girls...

Related:

  * [KIMOKAWAII: BOTH CUTE and GROSS AT THE SAME TIME](https://www.tofugu.com/japan/kimokawaii/)
  * [What is gap moe?](https://anime.stackexchange.com/q/28922/5094)
  * [ブサカワ](https://www.weblio.jp/content/%E3%83%96%E3%82%B5%E3%82%AB%E3%83%AF) (ブサイク + かわいい) 

>
> 不細工だが可愛いと感じられる顔立ちや表情を形容する表現。(snip)たとえば犬種のパグなどはブサカワであり、ブサカワであることがむしろ愛好されている種といえる。

