aidreamofsenpai: (Default)
Nitori Aiichiro ([personal profile] aidreamofsenpai) wrote 2014-12-28 12:00 am (UTC)

Re: video

You have to watch for things like muscles tensing. There are a lot of noises and expressions people make too, but those are different per person of course! But you can tell if someone gets harder or twitches a lot in your mouth, and...

Playing with their balls helps. Because you can notice that they draw up closer when they're ready to finish, too. I think pretty much everyone does that.

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