I love it when a girl wears minimal makeup, has that luminous pearly-white skin (think Sasha Grey, Stoya) and that once aroused their face, tits, and pussy will flush beet-red. Am I right??
All those sound like good indicators, but I seem to recall reading that a girl's upper chest will flush red when she's aroused. I tend to watch for that in a scene.
Cumwhipper and Quarantined,not sure if you are in the UK but Wendy Taylor who has been in loads of British titles might fit the bill for you,her chest flushes bright red i have noticed this in the two titles that i have of her.I will get a couple of screenshots uploaded and the names of the titles posted if you want.
In one of her first scenes, Teagan Presley had this beet-red blushing thing happen to her all around her pre-boob jobbed chest. In fact, I recall wondering if this was going to be an ongoing thing with her, yet I cannot recall seeing it again. I believe the title was Just Over Eighteen #10 (actually, during the scene, she claims it is her very first scene - I really wish there were a reliable place to get this info!!). It is a good Red Light title with a newbie Eva Angelina, a prime Cris Taliana (where have you been, Cris? Please come back!!!!!!!!), Melissa Lauren and Sally Rodeo. It's worth checking out -
Ok the first title is The Sex Agent Link to box cover Wendy's tits are already flushed red and when the sex scenes start her tits get redder and redder. Next title is Brit Chicks 2 Link to box cover Again Wendy's tits are flushed red as she gets undressed. And the link that arnie posted about the other blushing thread..Link....
It would happen to Samantha Ryan in her scenes. I pretty much only watch g/g and every time a girl goes down on her her chest/face would blush. Such a sexy indicator that they're really enjoying themselves.