What does おなかの奥がきゅうううん mean here?


Though I understood JP people say "きゅん/kyun" when they saw something cute or
lovely on social medias, but what does おなかの奥がきゅうううん mean here?

I met this sentence in a visual novel, hope someone can explain its meaning to
me.

A character said a girl is beautiful, and she felt too embarrassing after
that.

> Girl「あ、あうう……っ、見ないでぇ、見ないでぇ。ゆうしゃさまにじっと見られるとぉ……っ。おなかの奥がきゅうううんってぇなっちゃううう」




キュッ, ギュッ, キュー, キューン, キュン and so on are essentially onomatopoeias that express
the feeling of "tightening" or "squeezing" such as those typically associated
with angina, upset stomach and menstrual pain. When a young person says
胸がキュンと締め付けられる, it usually implies that they're in love, but if a middle-aged
or older person says the same thing, you probably need to advise them to
consult a physician. In your context, キュン refers to a certain sensation in
women's lower abdominal organs when they are sexually aroused.




キュッ, ギュッ, キュー, キューン, キュン and so on are essentially onomatopoeias that express
the feeling of "tightening" or "squeezing" such as those typically associated
with angina, upset stomach and menstrual pain. When a young person says
胸がキュンと締め付けられる, it usually implies that they're in love, but if a middle-aged
or older person says the same thing, you probably need to advise them to
consult a physician. In your context, キュン refers to a certain sensation in
women's lower abdominal organs when they are sexually aroused.

