*delurks*
I notice from time to time threads popping up on the forum about people noticing/experiencing real-life breast growth/swelling etc. I did a little google-research into it and yes - breasts do swell during arousal as blood flows to them.
Came (giggity) across this video of a /b/ camwhore called Zunechan, notice between the start and the middle how much perkier she gets lol.
n.b is actual porn, definitely nsf many, many places.
http://fapdu.com/zune-hotel-bate
Anyone come across anything similar?