From Porniki

Puffy nipples are nipples where the entire aereola actually exapnds or "puffs" up when the girl is aroused. In some cases, this can mean a very large nipple area. It seems to happen more often with girls that have smaller or tiny tits, and occassionally on largest breasted girls.

sample image from Private Video and June Piya from Thai Cuties

Puffy nipples are uncommon enough to be considered a fetish.

Hot girls show off their Puffy nipples:

* Blue Angel - Private girl with very tasty puffy nipples and firm tits
* Vivien Style  - hot Hungarian pornstar with puffy nipples and a taste for black cock
* June Piya - Sexy Thai teen shows off her huge puffy nipples
* Pure18 Vivien - This sexy blond has got some really nice puffies.
* Nastika - Blonde euro teenie has nice big firm puffy nipples
* Tudy Teen Puffies - Cute teen Tudy has nice big puffy nipples
* Dutch Teen Rose - Rose has nice big nipples that get puffy when she is horny
* Viva Nubiles - This sexy Hungarian teen has got massive nipples
* Banana Brandy - Brandy has nice cone shaped nipples that get puffed up nicely
* Puffy exchange student - this hotty from Venezuela gets fucked and shows her puffies
* Belinda - Hotty Belinda has small titties but nice puffy nipples
* Puffy Rihanna - this girl has nice big round puffy nipples
* Josie Junior - Perky little redhead with micro-puffy nipples
* Nichole - Shes got huge tits and her nipples are totally puffy too.