No.
Honestly, not really. It bothers men more than women.
It really depends on the girl. Some will like it, others might see it as degrading or unpleasant. Best thing to do is ask the girl in question!
They think it makes them look sexy or it's to prove they like the guy.
Some women like it and some hate it. It just depends upon the female. Studies have shown that swallowing reduces the chance of breast cancer, but more studies are needed to clarify if and how much.
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