>>4245672She's a porn star, she's probably done it plenty of times before.
A girl can be a total slut and still utterly suck in bed, for a number of reasons. I knew a girl who was into S&M, she's been in gangbangs at the clubs, had a dozen dudes unload directly into her mouth, DP'd, etc. She was still shit at giving a handjob. Held it all loose, barely gripped at all. Even after being shown, numerous times what to do both by being guided and having her hand physically put into the proper position.
A friend of mine fucked this fat, ugly bitch in her 30's. She was a hairdresser or something. Her job granted her access to a lot of high school boys, so her evenings were spent fucking 16-17 year old boys 3 at a time. That is to say, they took turns fucking her fat ass in the missionary position until she had an orgasm. At which point she would roll onto her side, say she was tired and order them to get the fuck out of her apartment. She never gave head, refused to allow cum to touch any portion of her body, breasts were too small to tittyfuck, and she gave horrible handjobs.
The girl I'm dating right now, while gorgeous and not at all a slut, absolutely refuses to consult porn to get better feeling confident that what she does is awesome and she doesn't need to learn anything.